Home / 12,488,371.85-17,234,331.78-6,981,978.69

Finding the Fourth Proportional to 12,488,371.85, 17,234,331.78 and 6,981,978.69

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Solution

The fourth proportional to 12,488,371.85, 17,234,331.78 and 6,981,978.69 is: 9,635,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488,371.85 : 17,234,331.78 = 6,981,978.69 : x
  2. Step 2: Convert to fraction form
    12,488,371.85/17,234,331.78 = 6,981,978.69/x
  3. Step 3: Cross multiply
    12,488,371.85x = 17,234,331.78 × 6,981,978.69
  4. Step 4: Simplify right side
    12,488,371.85x = 120,329,737,224,349.78
  5. Step 5: Solve for x
    x = 120,329,737,224,349.78/12,488,371.85
  6. Step 6: Final answer
    x = 9,635,342.28

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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.