Home / 115,981,806.30-173,972,709.45-77,761,211.10

Finding the Fourth Proportional to 115,981,806.30, 173,972,709.45 and 77,761,211.10

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Solution

The fourth proportional to 115,981,806.30, 173,972,709.45 and 77,761,211.10 is: 116,641,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,981,806.30 : 173,972,709.45 = 77,761,211.10 : x
  2. Step 2: Convert to fraction form
    115,981,806.30/173,972,709.45 = 77,761,211.10/x
  3. Step 3: Cross multiply
    115,981,806.30x = 173,972,709.45 × 77,761,211.10
  4. Step 4: Simplify right side
    115,981,806.30x = 13,528,328,585,180,412
  5. Step 5: Solve for x
    x = 13,528,328,585,180,412/115,981,806.30
  6. Step 6: Final answer
    x = 116,641,816.65

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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.