Home / 15,753,399.69-21,739,154.13-8,689,272.87

Finding the Fourth Proportional to 15,753,399.69, 21,739,154.13 and 8,689,272.87

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Solution

The fourth proportional to 15,753,399.69, 21,739,154.13 and 8,689,272.87 is: 11,990,900.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,753,399.69 : 21,739,154.13 = 8,689,272.87 : x
  2. Step 2: Convert to fraction form
    15,753,399.69/21,739,154.13 = 8,689,272.87/x
  3. Step 3: Cross multiply
    15,753,399.69x = 21,739,154.13 × 8,689,272.87
  4. Step 4: Simplify right side
    15,753,399.69x = 188,897,442,198,557.44
  5. Step 5: Solve for x
    x = 188,897,442,198,557.44/15,753,399.69
  6. Step 6: Final answer
    x = 11,990,900.12

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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.