Home / 129,485,930.20-194,228,895.30-123,513,962.20

Finding the Fourth Proportional to 129,485,930.20, 194,228,895.30 and 123,513,962.20

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Solution

The fourth proportional to 129,485,930.20, 194,228,895.30 and 123,513,962.20 is: 185,270,943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,485,930.20 : 194,228,895.30 = 123,513,962.20 : x
  2. Step 2: Convert to fraction form
    129,485,930.20/194,228,895.30 = 123,513,962.20/x
  3. Step 3: Cross multiply
    129,485,930.20x = 194,228,895.30 × 123,513,962.20
  4. Step 4: Simplify right side
    129,485,930.20x = 23,989,980,432,231,960
  5. Step 5: Solve for x
    x = 23,989,980,432,231,960/129,485,930.20
  6. Step 6: Final answer
    x = 185,270,943.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.