Home / 15,081,460,197.38-20,811,645,882.84-8,307,132,945.62

Finding the Fourth Proportional to 15,081,460,197.38, 20,811,645,882.84 and 8,307,132,945.62

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Solution

The fourth proportional to 15,081,460,197.38, 20,811,645,882.84 and 8,307,132,945.62 is: 11,463,419,781.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,081,460,197.38 : 20,811,645,882.84 = 8,307,132,945.62 : x
  2. Step 2: Convert to fraction form
    15,081,460,197.38/20,811,645,882.84 = 8,307,132,945.62/x
  3. Step 3: Cross multiply
    15,081,460,197.38x = 20,811,645,882.84 × 8,307,132,945.62
  4. Step 4: Simplify right side
    15,081,460,197.38x = 172,885,109,165,916,979,200
  5. Step 5: Solve for x
    x = 172,885,109,165,916,979,200/15,081,460,197.38
  6. Step 6: Final answer
    x = 11,463,419,781.86

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Double scale
Find fourth proportional to 15,081,460,198.38, 20,811,645,884.22 and 8,307,132,946.62
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.