Home / 78,732,177.70-118,098,266.55-54,073,315.30

Finding the Fourth Proportional to 78,732,177.70, 118,098,266.55 and 54,073,315.30

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Solution

The fourth proportional to 78,732,177.70, 118,098,266.55 and 54,073,315.30 is: 81,109,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,177.70 : 118,098,266.55 = 54,073,315.30 : x
  2. Step 2: Convert to fraction form
    78,732,177.70/118,098,266.55 = 54,073,315.30/x
  3. Step 3: Cross multiply
    78,732,177.70x = 118,098,266.55 × 54,073,315.30
  4. Step 4: Simplify right side
    78,732,177.70x = 6,385,964,803,541,593
  5. Step 5: Solve for x
    x = 6,385,964,803,541,593/78,732,177.70
  6. Step 6: Final answer
    x = 81,109,972.95

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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.