Home / 20,690,583.72-28,553,890.50-11,523,225

Finding the Fourth Proportional to 20,690,583.72, 28,553,890.50 and 11,523,225

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Solution

The fourth proportional to 20,690,583.72, 28,553,890.50 and 11,523,225 is: 15,902,543.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690,583.72 : 28,553,890.50 = 11,523,225 : x
  2. Step 2: Convert to fraction form
    20,690,583.72/28,553,890.50 = 11,523,225/x
  3. Step 3: Cross multiply
    20,690,583.72x = 28,553,890.50 × 11,523,225
  4. Step 4: Simplify right side
    20,690,583.72x = 329,032,904,856,862.50
  5. Step 5: Solve for x
    x = 329,032,904,856,862.50/20,690,583.72
  6. Step 6: Final answer
    x = 15,902,543.37

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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.