Home / 122,207,864.37-168,650,049.11-66,456,545.46

Finding the Fourth Proportional to 122,207,864.37, 168,650,049.11 and 66,456,545.46

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Solution

The fourth proportional to 122,207,864.37, 168,650,049.11 and 66,456,545.46 is: 91,711,770.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,207,864.37 : 168,650,049.11 = 66,456,545.46 : x
  2. Step 2: Convert to fraction form
    122,207,864.37/168,650,049.11 = 66,456,545.46/x
  3. Step 3: Cross multiply
    122,207,864.37x = 168,650,049.11 × 66,456,545.46
  4. Step 4: Simplify right side
    122,207,864.37x = 11,207,899,655,509,948
  5. Step 5: Solve for x
    x = 11,207,899,655,509,948/122,207,864.37
  6. Step 6: Final answer
    x = 91,711,770.87

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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.