Home / 18,997,513.20-28,494,082.80-5,534,341.20

Finding the Fourth Proportional to 18,997,513.20, 28,494,082.80 and 5,534,341.20

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Solution

The fourth proportional to 18,997,513.20, 28,494,082.80 and 5,534,341.20 is: 8,300,874.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997,513.20 : 28,494,082.80 = 5,534,341.20 : x
  2. Step 2: Convert to fraction form
    18,997,513.20/28,494,082.80 = 5,534,341.20/x
  3. Step 3: Cross multiply
    18,997,513.20x = 28,494,082.80 × 5,534,341.20
  4. Step 4: Simplify right side
    18,997,513.20x = 157,695,976,396,251.38
  5. Step 5: Solve for x
    x = 157,695,976,396,251.38/18,997,513.20
  6. Step 6: Final answer
    x = 8,300,874.68

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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.