Home / 215,928,084.16-297,973,344.80-123,138,456.40

Finding the Fourth Proportional to 215,928,084.16, 297,973,344.80 and 123,138,456.40

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Solution

The fourth proportional to 215,928,084.16, 297,973,344.80 and 123,138,456.40 is: 169,926,843.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,928,084.16 : 297,973,344.80 = 123,138,456.40 : x
  2. Step 2: Convert to fraction form
    215,928,084.16/297,973,344.80 = 123,138,456.40/x
  3. Step 3: Cross multiply
    215,928,084.16x = 297,973,344.80 × 123,138,456.40
  4. Step 4: Simplify right side
    215,928,084.16x = 36,691,977,727,016,968
  5. Step 5: Solve for x
    x = 36,691,977,727,016,968/215,928,084.16
  6. Step 6: Final answer
    x = 169,926,843.33

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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.