Home / 149,969,605.83-206,874,691.96-87,238,645.53

Finding the Fourth Proportional to 149,969,605.83, 206,874,691.96 and 87,238,645.53

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Solution

The fourth proportional to 149,969,605.83, 206,874,691.96 and 87,238,645.53 is: 120,340,837.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,969,605.83 : 206,874,691.96 = 87,238,645.53 : x
  2. Step 2: Convert to fraction form
    149,969,605.83/206,874,691.96 = 87,238,645.53/x
  3. Step 3: Cross multiply
    149,969,605.83x = 206,874,691.96 × 87,238,645.53
  4. Step 4: Simplify right side
    149,969,605.83x = 18,047,467,921,026,380
  5. Step 5: Solve for x
    x = 18,047,467,921,026,380/149,969,605.83
  6. Step 6: Final answer
    x = 120,340,837.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.