Home / 20,744,711.20-31,117,066.80-11,178,773.20

Finding the Fourth Proportional to 20,744,711.20, 31,117,066.80 and 11,178,773.20

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Solution

The fourth proportional to 20,744,711.20, 31,117,066.80 and 11,178,773.20 is: 16,768,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744,711.20 : 31,117,066.80 = 11,178,773.20 : x
  2. Step 2: Convert to fraction form
    20,744,711.20/31,117,066.80 = 11,178,773.20/x
  3. Step 3: Cross multiply
    20,744,711.20x = 31,117,066.80 × 11,178,773.20
  4. Step 4: Simplify right side
    20,744,711.20x = 347,850,632,406,449.75
  5. Step 5: Solve for x
    x = 347,850,632,406,449.75/20,744,711.20
  6. Step 6: Final answer
    x = 16,768,159.80

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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.