Home / 660,194,427.60-990,291,641.40-401,914,101.60

Finding the Fourth Proportional to 660,194,427.60, 990,291,641.40 and 401,914,101.60

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Solution

The fourth proportional to 660,194,427.60, 990,291,641.40 and 401,914,101.60 is: 602,871,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,194,427.60 : 990,291,641.40 = 401,914,101.60 : x
  2. Step 2: Convert to fraction form
    660,194,427.60/990,291,641.40 = 401,914,101.60/x
  3. Step 3: Cross multiply
    660,194,427.60x = 990,291,641.40 × 401,914,101.60
  4. Step 4: Simplify right side
    660,194,427.60x = 398,012,175,375,270,400
  5. Step 5: Solve for x
    x = 398,012,175,375,270,400/660,194,427.60
  6. Step 6: Final answer
    x = 602,871,152.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.