Home / 20,816,537.87-31,098,293.72-13,470,149.58

Finding the Fourth Proportional to 20,816,537.87, 31,098,293.72 and 13,470,149.58

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Solution

The fourth proportional to 20,816,537.87, 31,098,293.72 and 13,470,149.58 is: 20,123,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816,537.87 : 31,098,293.72 = 13,470,149.58 : x
  2. Step 2: Convert to fraction form
    20,816,537.87/31,098,293.72 = 13,470,149.58/x
  3. Step 3: Cross multiply
    20,816,537.87x = 31,098,293.72 × 13,470,149.58
  4. Step 4: Simplify right side
    20,816,537.87x = 418,898,668,023,823.88
  5. Step 5: Solve for x
    x = 418,898,668,023,823.88/20,816,537.87
  6. Step 6: Final answer
    x = 20,123,359.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.