Home / 99,147,728.70-148,627,114.65-77,275,979.10

Finding the Fourth Proportional to 99,147,728.70, 148,627,114.65 and 77,275,979.10

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Solution

The fourth proportional to 99,147,728.70, 148,627,114.65 and 77,275,979.10 is: 115,840,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,147,728.70 : 148,627,114.65 = 77,275,979.10 : x
  2. Step 2: Convert to fraction form
    99,147,728.70/148,627,114.65 = 77,275,979.10/x
  3. Step 3: Cross multiply
    99,147,728.70x = 148,627,114.65 × 77,275,979.10
  4. Step 4: Simplify right side
    99,147,728.70x = 11,485,305,805,386,704
  5. Step 5: Solve for x
    x = 11,485,305,805,386,704/99,147,728.70
  6. Step 6: Final answer
    x = 115,840,331.96

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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.