Home / 20,689,743.30-31,034,614.95-5,545,205.70

Finding the Fourth Proportional to 20,689,743.30, 31,034,614.95 and 5,545,205.70

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Solution

The fourth proportional to 20,689,743.30, 31,034,614.95 and 5,545,205.70 is: 8,317,808.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,743.30 : 31,034,614.95 = 5,545,205.70 : x
  2. Step 2: Convert to fraction form
    20,689,743.30/31,034,614.95 = 5,545,205.70/x
  3. Step 3: Cross multiply
    20,689,743.30x = 31,034,614.95 × 5,545,205.70
  4. Step 4: Simplify right side
    20,689,743.30x = 172,093,323,718,045.22
  5. Step 5: Solve for x
    x = 172,093,323,718,045.22/20,689,743.30
  6. Step 6: Final answer
    x = 8,317,808.55

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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.