Home / 72,757,066.90-109,135,600.35-36,371,073.10

Finding the Fourth Proportional to 72,757,066.90, 109,135,600.35 and 36,371,073.10

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Solution

The fourth proportional to 72,757,066.90, 109,135,600.35 and 36,371,073.10 is: 54,556,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,757,066.90 : 109,135,600.35 = 36,371,073.10 : x
  2. Step 2: Convert to fraction form
    72,757,066.90/109,135,600.35 = 36,371,073.10/x
  3. Step 3: Cross multiply
    72,757,066.90x = 109,135,600.35 × 36,371,073.10
  4. Step 4: Simplify right side
    72,757,066.90x = 3,969,378,898,142,235.50
  5. Step 5: Solve for x
    x = 3,969,378,898,142,235.50/72,757,066.90
  6. Step 6: Final answer
    x = 54,556,609.65

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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.