Home / 122,207,869.13-168,650,055.68-66,456,550.20

Finding the Fourth Proportional to 122,207,869.13, 168,650,055.68 and 66,456,550.20

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Solution

The fourth proportional to 122,207,869.13, 168,650,055.68 and 66,456,550.20 is: 91,711,777.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,207,869.13 : 168,650,055.68 = 66,456,550.20 : x
  2. Step 2: Convert to fraction form
    122,207,869.13/168,650,055.68 = 66,456,550.20/x
  3. Step 3: Cross multiply
    122,207,869.13x = 168,650,055.68 × 66,456,550.20
  4. Step 4: Simplify right side
    122,207,869.13x = 11,207,900,891,198,434
  5. Step 5: Solve for x
    x = 11,207,900,891,198,434/122,207,869.13
  6. Step 6: Final answer
    x = 91,711,777.41

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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.