Home / 124,528,591.78-171,799,414.58-78,101,906.02

Finding the Fourth Proportional to 124,528,591.78, 171,799,414.58 and 78,101,906.02

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Solution

The fourth proportional to 124,528,591.78, 171,799,414.58 and 78,101,906.02 is: 107,749,244.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,528,591.78 : 171,799,414.58 = 78,101,906.02 : x
  2. Step 2: Convert to fraction form
    124,528,591.78/171,799,414.58 = 78,101,906.02/x
  3. Step 3: Cross multiply
    124,528,591.78x = 171,799,414.58 × 78,101,906.02
  4. Step 4: Simplify right side
    124,528,591.78x = 13,417,861,731,583,934
  5. Step 5: Solve for x
    x = 13,417,861,731,583,934/124,528,591.78
  6. Step 6: Final answer
    x = 107,749,244.89

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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.