Home / 215,928,084.66-297,973,345.49-123,138,456.90

Finding the Fourth Proportional to 215,928,084.66, 297,973,345.49 and 123,138,456.90

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Solution

The fourth proportional to 215,928,084.66, 297,973,345.49 and 123,138,456.90 is: 169,926,844.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,928,084.66 : 297,973,345.49 = 123,138,456.90 : x
  2. Step 2: Convert to fraction form
    215,928,084.66/297,973,345.49 = 123,138,456.90/x
  3. Step 3: Cross multiply
    215,928,084.66x = 297,973,345.49 × 123,138,456.90
  4. Step 4: Simplify right side
    215,928,084.66x = 36,691,977,960,969,176
  5. Step 5: Solve for x
    x = 36,691,977,960,969,176/215,928,084.66
  6. Step 6: Final answer
    x = 169,926,844.02

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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.