Home / 10,078,515.62-15,108,821.30-3,929,079.86

Finding the Fourth Proportional to 10,078,515.62, 15,108,821.30 and 3,929,079.86

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Solution

The fourth proportional to 10,078,515.62, 15,108,821.30 and 3,929,079.86 is: 5,890,129.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078,515.62 : 15,108,821.30 = 3,929,079.86 : x
  2. Step 2: Convert to fraction form
    10,078,515.62/15,108,821.30 = 3,929,079.86/x
  3. Step 3: Cross multiply
    10,078,515.62x = 15,108,821.30 × 3,929,079.86
  4. Step 4: Simplify right side
    10,078,515.62x = 59,363,765,412,447.61
  5. Step 5: Solve for x
    x = 59,363,765,412,447.61/10,078,515.62
  6. Step 6: Final answer
    x = 5,890,129.82

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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.