Home / 99,209,455.38-136,912,014.81-54,553,107.78

Finding the Fourth Proportional to 99,209,455.38, 136,912,014.81 and 54,553,107.78

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Solution

The fourth proportional to 99,209,455.38, 136,912,014.81 and 54,553,107.78 is: 75,284,919.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,209,455.38 : 136,912,014.81 = 54,553,107.78 : x
  2. Step 2: Convert to fraction form
    99,209,455.38/136,912,014.81 = 54,553,107.78/x
  3. Step 3: Cross multiply
    99,209,455.38x = 136,912,014.81 × 54,553,107.78
  4. Step 4: Simplify right side
    99,209,455.38x = 7,468,975,900,306,887
  5. Step 5: Solve for x
    x = 7,468,975,900,306,887/99,209,455.38
  6. Step 6: Final answer
    x = 75,284,919.89

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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.