Home / 139,968,458.10-209,952,687.15-129,764,790.90

Finding the Fourth Proportional to 139,968,458.10, 209,952,687.15 and 129,764,790.90

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Solution

The fourth proportional to 139,968,458.10, 209,952,687.15 and 129,764,790.90 is: 194,647,186.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,458.10 : 209,952,687.15 = 129,764,790.90 : x
  2. Step 2: Convert to fraction form
    139,968,458.10/209,952,687.15 = 129,764,790.90/x
  3. Step 3: Cross multiply
    139,968,458.10x = 209,952,687.15 × 129,764,790.90
  4. Step 4: Simplify right side
    139,968,458.10x = 27,244,466,546,912,868
  5. Step 5: Solve for x
    x = 27,244,466,546,912,868/139,968,458.10
  6. Step 6: Final answer
    x = 194,647,186.35

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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.