Home / 20,746,890.32-31,142,249.21-11,656,756.04

Finding the Fourth Proportional to 20,746,890.32, 31,142,249.21 and 11,656,756.04

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Solution

The fourth proportional to 20,746,890.32, 31,142,249.21 and 11,656,756.04 is: 17,497,446.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746,890.32 : 31,142,249.21 = 11,656,756.04 : x
  2. Step 2: Convert to fraction form
    20,746,890.32/31,142,249.21 = 11,656,756.04/x
  3. Step 3: Cross multiply
    20,746,890.32x = 31,142,249.21 × 11,656,756.04
  4. Step 4: Simplify right side
    20,746,890.32x = 363,017,601,451,283.38
  5. Step 5: Solve for x
    x = 363,017,601,451,283.38/20,746,890.32
  6. Step 6: Final answer
    x = 17,497,446.41

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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.