Home / 129,861,049-179,213,880.90-71,914,297

Finding the Fourth Proportional to 129,861,049, 179,213,880.90 and 71,914,297

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Solution

The fourth proportional to 129,861,049, 179,213,880.90 and 71,914,297 is: 99,244,849.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,861,049 : 179,213,880.90 = 71,914,297 : x
  2. Step 2: Convert to fraction form
    129,861,049/179,213,880.90 = 71,914,297/x
  3. Step 3: Cross multiply
    129,861,049x = 179,213,880.90 × 71,914,297
  4. Step 4: Simplify right side
    129,861,049x = 12,888,040,257,565,228
  5. Step 5: Solve for x
    x = 12,888,040,257,565,228/129,861,049
  6. Step 6: Final answer
    x = 99,244,849.45

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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.