Home / 21,387,773.70-32,081,660.55-20,392,445.70

Finding the Fourth Proportional to 21,387,773.70, 32,081,660.55 and 20,392,445.70

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Solution

The fourth proportional to 21,387,773.70, 32,081,660.55 and 20,392,445.70 is: 30,588,668.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,773.70 : 32,081,660.55 = 20,392,445.70 : x
  2. Step 2: Convert to fraction form
    21,387,773.70/32,081,660.55 = 20,392,445.70/x
  3. Step 3: Cross multiply
    21,387,773.70x = 32,081,660.55 × 20,392,445.70
  4. Step 4: Simplify right side
    21,387,773.70x = 654,223,520,731,707.12
  5. Step 5: Solve for x
    x = 654,223,520,731,707.12/21,387,773.70
  6. Step 6: Final answer
    x = 30,588,668.55

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Similar ratio
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1.5x scale

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.