Home / 193,920,666.60-290,880,999.90-121,361,255.40

Finding the Fourth Proportional to 193,920,666.60, 290,880,999.90 and 121,361,255.40

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Solution

The fourth proportional to 193,920,666.60, 290,880,999.90 and 121,361,255.40 is: 182,041,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,920,666.60 : 290,880,999.90 = 121,361,255.40 : x
  2. Step 2: Convert to fraction form
    193,920,666.60/290,880,999.90 = 121,361,255.40/x
  3. Step 3: Cross multiply
    193,920,666.60x = 290,880,999.90 × 121,361,255.40
  4. Step 4: Simplify right side
    193,920,666.60x = 35,301,683,319,871,272
  5. Step 5: Solve for x
    x = 35,301,683,319,871,272/193,920,666.60
  6. Step 6: Final answer
    x = 182,041,883.10

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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.