Home / 10,866,861.20-16,273,386.84-7,981,385.36

Finding the Fourth Proportional to 10,866,861.20, 16,273,386.84 and 7,981,385.36

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Solution

The fourth proportional to 10,866,861.20, 16,273,386.84 and 7,981,385.36 is: 11,952,317.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866,861.20 : 16,273,386.84 = 7,981,385.36 : x
  2. Step 2: Convert to fraction form
    10,866,861.20/16,273,386.84 = 7,981,385.36/x
  3. Step 3: Cross multiply
    10,866,861.20x = 16,273,386.84 × 7,981,385.36
  4. Step 4: Simplify right side
    10,866,861.20x = 129,884,171,482,392.67
  5. Step 5: Solve for x
    x = 129,884,171,482,392.67/10,866,861.20
  6. Step 6: Final answer
    x = 11,952,317.15

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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.