Home / 479,606,343.95-661,895,207.90-381,298,394.87

Finding the Fourth Proportional to 479,606,343.95, 661,895,207.90 and 381,298,394.87

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Solution

The fourth proportional to 479,606,343.95, 661,895,207.90 and 381,298,394.87 is: 526,222,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,606,343.95 : 661,895,207.90 = 381,298,394.87 : x
  2. Step 2: Convert to fraction form
    479,606,343.95/661,895,207.90 = 381,298,394.87/x
  3. Step 3: Cross multiply
    479,606,343.95x = 661,895,207.90 × 381,298,394.87
  4. Step 4: Simplify right side
    479,606,343.95x = 252,379,580,344,414,944
  5. Step 5: Solve for x
    x = 252,379,580,344,414,944/479,606,343.95
  6. Step 6: Final answer
    x = 526,222,356.16

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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.