Home / 120,649,469.76-166,513,345.92-68,451,436.80

Finding the Fourth Proportional to 120,649,469.76, 166,513,345.92 and 68,451,436.80

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Solution

The fourth proportional to 120,649,469.76, 166,513,345.92 and 68,451,436.80 is: 94,472,671.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,649,469.76 : 166,513,345.92 = 68,451,436.80 : x
  2. Step 2: Convert to fraction form
    120,649,469.76/166,513,345.92 = 68,451,436.80/x
  3. Step 3: Cross multiply
    120,649,469.76x = 166,513,345.92 × 68,451,436.80
  4. Step 4: Simplify right side
    120,649,469.76x = 11,398,077,774,599,416
  5. Step 5: Solve for x
    x = 11,398,077,774,599,416/120,649,469.76
  6. Step 6: Final answer
    x = 94,472,671.93

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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.