Home / 139,548,987.20-209,024,882.40-124,420,001.60

Finding the Fourth Proportional to 139,548,987.20, 209,024,882.40 and 124,420,001.60

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Solution

The fourth proportional to 139,548,987.20, 209,024,882.40 and 124,420,001.60 is: 186,363,776.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,548,987.20 : 209,024,882.40 = 124,420,001.60 : x
  2. Step 2: Convert to fraction form
    139,548,987.20/209,024,882.40 = 124,420,001.60/x
  3. Step 3: Cross multiply
    139,548,987.20x = 209,024,882.40 × 124,420,001.60
  4. Step 4: Simplify right side
    139,548,987.20x = 26,006,876,202,647,812
  5. Step 5: Solve for x
    x = 26,006,876,202,647,812/139,548,987.20
  6. Step 6: Final answer
    x = 186,363,776.08

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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.