Home / 20,702,237.92-28,569,205.20-12,005,573.92

Finding the Fourth Proportional to 20,702,237.92, 28,569,205.20 and 12,005,573.92

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Solution

The fourth proportional to 20,702,237.92, 28,569,205.20 and 12,005,573.92 is: 16,567,759.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,237.92 : 28,569,205.20 = 12,005,573.92 : x
  2. Step 2: Convert to fraction form
    20,702,237.92/28,569,205.20 = 12,005,573.92/x
  3. Step 3: Cross multiply
    20,702,237.92x = 28,569,205.20 × 12,005,573.92
  4. Step 4: Simplify right side
    20,702,237.92x = 342,989,704,864,248.38
  5. Step 5: Solve for x
    x = 342,989,704,864,248.38/20,702,237.92
  6. Step 6: Final answer
    x = 16,567,759.78

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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.