Home / 79,715,030.40-119,572,545.60-72,912,585.60

Finding the Fourth Proportional to 79,715,030.40, 119,572,545.60 and 72,912,585.60

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Solution

The fourth proportional to 79,715,030.40, 119,572,545.60 and 72,912,585.60 is: 109,368,878.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,715,030.40 : 119,572,545.60 = 72,912,585.60 : x
  2. Step 2: Convert to fraction form
    79,715,030.40/119,572,545.60 = 72,912,585.60/x
  3. Step 3: Cross multiply
    79,715,030.40x = 119,572,545.60 × 72,912,585.60
  4. Step 4: Simplify right side
    79,715,030.40x = 8,718,343,466,469,902
  5. Step 5: Solve for x
    x = 8,718,343,466,469,902/79,715,030.40
  6. Step 6: Final answer
    x = 109,368,878.40

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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.