Home / 381,678,218.10-572,517,327.15-136,311,908.40

Finding the Fourth Proportional to 381,678,218.10, 572,517,327.15 and 136,311,908.40

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Solution

The fourth proportional to 381,678,218.10, 572,517,327.15 and 136,311,908.40 is: 204,467,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,678,218.10 : 572,517,327.15 = 136,311,908.40 : x
  2. Step 2: Convert to fraction form
    381,678,218.10/572,517,327.15 = 136,311,908.40/x
  3. Step 3: Cross multiply
    381,678,218.10x = 572,517,327.15 × 136,311,908.40
  4. Step 4: Simplify right side
    381,678,218.10x = 78,040,929,455,883,632
  5. Step 5: Solve for x
    x = 78,040,929,455,883,632/381,678,218.10
  6. Step 6: Final answer
    x = 204,467,862.60

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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.