Home / 381,986,914.55-572,979,655.76-119,691,545.72

Finding the Fourth Proportional to 381,986,914.55, 572,979,655.76 and 119,691,545.72

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Solution

The fourth proportional to 381,986,914.55, 572,979,655.76 and 119,691,545.72 is: 179,537,094.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,986,914.55 : 572,979,655.76 = 119,691,545.72 : x
  2. Step 2: Convert to fraction form
    381,986,914.55/572,979,655.76 = 119,691,545.72/x
  3. Step 3: Cross multiply
    381,986,914.55x = 572,979,655.76 × 119,691,545.72
  4. Step 4: Simplify right side
    381,986,914.55x = 68,580,820,660,564,544
  5. Step 5: Solve for x
    x = 68,580,820,660,564,544/381,986,914.55
  6. Step 6: Final answer
    x = 179,537,094.20

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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.