Home / 129,882,435.60-179,231,391.84-71,145,361.32

Finding the Fourth Proportional to 129,882,435.60, 179,231,391.84 and 71,145,361.32

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Solution

The fourth proportional to 129,882,435.60, 179,231,391.84 and 71,145,361.32 is: 98,177,109.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,882,435.60 : 179,231,391.84 = 71,145,361.32 : x
  2. Step 2: Convert to fraction form
    129,882,435.60/179,231,391.84 = 71,145,361.32/x
  3. Step 3: Cross multiply
    129,882,435.60x = 179,231,391.84 × 71,145,361.32
  4. Step 4: Simplify right side
    129,882,435.60x = 12,751,482,132,343,298
  5. Step 5: Solve for x
    x = 12,751,482,132,343,298/129,882,435.60
  6. Step 6: Final answer
    x = 98,177,109.73

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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.