Home / 129,882,427.60-179,231,380.80-71,145,353.32

Finding the Fourth Proportional to 129,882,427.60, 179,231,380.80 and 71,145,353.32

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Solution

The fourth proportional to 129,882,427.60, 179,231,380.80 and 71,145,353.32 is: 98,177,098.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,882,427.60 : 179,231,380.80 = 71,145,353.32 : x
  2. Step 2: Convert to fraction form
    129,882,427.60/179,231,380.80 = 71,145,353.32/x
  3. Step 3: Cross multiply
    129,882,427.60x = 179,231,380.80 × 71,145,353.32
  4. Step 4: Simplify right side
    129,882,427.60x = 12,751,479,913,047,464
  5. Step 5: Solve for x
    x = 12,751,479,913,047,464/129,882,427.60
  6. Step 6: Final answer
    x = 98,177,098.69

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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.