Home / 151,388,351.25-208,915,892.54-81,773,732.85

Finding the Fourth Proportional to 151,388,351.25, 208,915,892.54 and 81,773,732.85

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Solution

The fourth proportional to 151,388,351.25, 208,915,892.54 and 81,773,732.85 is: 112,847,733.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,388,351.25 : 208,915,892.54 = 81,773,732.85 : x
  2. Step 2: Convert to fraction form
    151,388,351.25/208,915,892.54 = 81,773,732.85/x
  3. Step 3: Cross multiply
    151,388,351.25x = 208,915,892.54 × 81,773,732.85
  4. Step 4: Simplify right side
    151,388,351.25x = 17,083,832,384,685,266
  5. Step 5: Solve for x
    x = 17,083,832,384,685,266/151,388,351.25
  6. Step 6: Final answer
    x = 112,847,733.95

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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.