Home / 72,426,753.60-108,640,130.40-65,836,885.20

Finding the Fourth Proportional to 72,426,753.60, 108,640,130.40 and 65,836,885.20

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Solution

The fourth proportional to 72,426,753.60, 108,640,130.40 and 65,836,885.20 is: 98,755,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,426,753.60 : 108,640,130.40 = 65,836,885.20 : x
  2. Step 2: Convert to fraction form
    72,426,753.60/108,640,130.40 = 65,836,885.20/x
  3. Step 3: Cross multiply
    72,426,753.60x = 108,640,130.40 × 65,836,885.20
  4. Step 4: Simplify right side
    72,426,753.60x = 7,152,527,793,257,831
  5. Step 5: Solve for x
    x = 7,152,527,793,257,831/72,426,753.60
  6. Step 6: Final answer
    x = 98,755,327.80

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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.