Home / 131,283,545.10-197,102,610.45-76,752,012.30

Finding the Fourth Proportional to 131,283,545.10, 197,102,610.45 and 76,752,012.30

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Solution

The fourth proportional to 131,283,545.10, 197,102,610.45 and 76,752,012.30 is: 115,231,668.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,283,545.10 : 197,102,610.45 = 76,752,012.30 : x
  2. Step 2: Convert to fraction form
    131,283,545.10/197,102,610.45 = 76,752,012.30/x
  3. Step 3: Cross multiply
    131,283,545.10x = 197,102,610.45 × 76,752,012.30
  4. Step 4: Simplify right side
    131,283,545.10x = 15,128,021,981,620,508
  5. Step 5: Solve for x
    x = 15,128,021,981,620,508/131,283,545.10
  6. Step 6: Final answer
    x = 115,231,668.75

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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.