Home / 723,070,157,601.72-997,845,955,803.18-397,946,871,032.76

Finding the Fourth Proportional to 723,070,157,601.72, 997,845,955,803.18 and 397,946,871,032.76

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Solution

The fourth proportional to 723,070,157,601.72, 997,845,955,803.18 and 397,946,871,032.76 is: 549,171,711,361.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,070,157,601.72 : 997,845,955,803.18 = 397,946,871,032.76 : x
  2. Step 2: Convert to fraction form
    723,070,157,601.72/997,845,955,803.18 = 397,946,871,032.76/x
  3. Step 3: Cross multiply
    723,070,157,601.72x = 997,845,955,803.18 × 397,946,871,032.76
  4. Step 4: Simplify right side
    723,070,157,601.72x = 397,089,675,884,569,263,341,568
  5. Step 5: Solve for x
    x = 397,089,675,884,569,263,341,568/723,070,157,601.72
  6. Step 6: Final answer
    x = 549,171,711,361.50

Related Problems

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Half scale
Find fourth proportional to 1,446,140,315,203.44, 1,995,691,911,606.36 and 795,893,742,065.52
Double scale
Find fourth proportional to 723,070,157,602.72, 997,845,955,804.56 and 397,946,871,033.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.