Home / 78,732,114.10-118,098,171.15-72,992,551.30

Finding the Fourth Proportional to 78,732,114.10, 118,098,171.15 and 72,992,551.30

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Solution

The fourth proportional to 78,732,114.10, 118,098,171.15 and 72,992,551.30 is: 109,488,826.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,114.10 : 118,098,171.15 = 72,992,551.30 : x
  2. Step 2: Convert to fraction form
    78,732,114.10/118,098,171.15 = 72,992,551.30/x
  3. Step 3: Cross multiply
    78,732,114.10x = 118,098,171.15 × 72,992,551.30
  4. Step 4: Simplify right side
    78,732,114.10x = 8,620,286,816,102,555
  5. Step 5: Solve for x
    x = 8,620,286,816,102,555/78,732,114.10
  6. Step 6: Final answer
    x = 109,488,826.95

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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.