Home / 168,420,887.20-252,253,417.20-138,187,799.20

Finding the Fourth Proportional to 168,420,887.20, 252,253,417.20 and 138,187,799.20

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Solution

The fourth proportional to 168,420,887.20, 252,253,417.20 and 138,187,799.20 is: 206,971,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,420,887.20 : 252,253,417.20 = 138,187,799.20 : x
  2. Step 2: Convert to fraction form
    168,420,887.20/252,253,417.20 = 138,187,799.20/x
  3. Step 3: Cross multiply
    168,420,887.20x = 252,253,417.20 × 138,187,799.20
  4. Step 4: Simplify right side
    168,420,887.20x = 34,858,344,563,547,420
  5. Step 5: Solve for x
    x = 34,858,344,563,547,420/168,420,887.20
  6. Step 6: Final answer
    x = 206,971,624.14

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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.