Home / 138,621,537.90-207,932,306.85-36,395,909.10

Finding the Fourth Proportional to 138,621,537.90, 207,932,306.85 and 36,395,909.10

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Solution

The fourth proportional to 138,621,537.90, 207,932,306.85 and 36,395,909.10 is: 54,593,863.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,621,537.90 : 207,932,306.85 = 36,395,909.10 : x
  2. Step 2: Convert to fraction form
    138,621,537.90/207,932,306.85 = 36,395,909.10/x
  3. Step 3: Cross multiply
    138,621,537.90x = 207,932,306.85 × 36,395,909.10
  4. Step 4: Simplify right side
    138,621,537.90x = 7,567,885,339,065,907
  5. Step 5: Solve for x
    x = 7,567,885,339,065,907/138,621,537.90
  6. Step 6: Final answer
    x = 54,593,863.65

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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.