Home / 381,721,007.70-572,749,473.15-177,143,778.90

Finding the Fourth Proportional to 381,721,007.70, 572,749,473.15 and 177,143,778.90

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Solution

The fourth proportional to 381,721,007.70, 572,749,473.15 and 177,143,778.90 is: 265,793,613.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,721,007.70 : 572,749,473.15 = 177,143,778.90 : x
  2. Step 2: Convert to fraction form
    381,721,007.70/572,749,473.15 = 177,143,778.90/x
  3. Step 3: Cross multiply
    381,721,007.70x = 572,749,473.15 × 177,143,778.90
  4. Step 4: Simplify right side
    381,721,007.70x = 101,459,006,036,775,088
  5. Step 5: Solve for x
    x = 101,459,006,036,775,088/381,721,007.70
  6. Step 6: Final answer
    x = 265,793,613.63

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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.