Home / 20,948,726.55-28,904,910.02-12,245,215.60

Finding the Fourth Proportional to 20,948,726.55, 28,904,910.02 and 12,245,215.60

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Solution

The fourth proportional to 20,948,726.55, 28,904,910.02 and 12,245,215.60 is: 16,895,864.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,948,726.55 : 28,904,910.02 = 12,245,215.60 : x
  2. Step 2: Convert to fraction form
    20,948,726.55/28,904,910.02 = 12,245,215.60/x
  3. Step 3: Cross multiply
    20,948,726.55x = 28,904,910.02 × 12,245,215.60
  4. Step 4: Simplify right side
    20,948,726.55x = 353,946,855,093,500.31
  5. Step 5: Solve for x
    x = 353,946,855,093,500.31/20,948,726.55
  6. Step 6: Final answer
    x = 16,895,864.97

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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.