Home / 118,098,138.30-177,147,207.45-81,109,844.70

Finding the Fourth Proportional to 118,098,138.30, 177,147,207.45 and 81,109,844.70

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Solution

The fourth proportional to 118,098,138.30, 177,147,207.45 and 81,109,844.70 is: 121,664,767.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,098,138.30 : 177,147,207.45 = 81,109,844.70 : x
  2. Step 2: Convert to fraction form
    118,098,138.30/177,147,207.45 = 81,109,844.70/x
  3. Step 3: Cross multiply
    118,098,138.30x = 177,147,207.45 × 81,109,844.70
  4. Step 4: Simplify right side
    118,098,138.30x = 14,368,382,485,308,182
  5. Step 5: Solve for x
    x = 14,368,382,485,308,182/118,098,138.30
  6. Step 6: Final answer
    x = 121,664,767.05

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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.