Home / 56,891,963.38-78,511,116.13-30,786,478.36

Finding the Fourth Proportional to 56,891,963.38, 78,511,116.13 and 30,786,478.36

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Solution

The fourth proportional to 56,891,963.38, 78,511,116.13 and 30,786,478.36 is: 42,485,451.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,891,963.38 : 78,511,116.13 = 30,786,478.36 : x
  2. Step 2: Convert to fraction form
    56,891,963.38/78,511,116.13 = 30,786,478.36/x
  3. Step 3: Cross multiply
    56,891,963.38x = 78,511,116.13 × 30,786,478.36
  4. Step 4: Simplify right side
    56,891,963.38x = 2,417,080,777,363,136.50
  5. Step 5: Solve for x
    x = 2,417,080,777,363,136.50/56,891,963.38
  6. Step 6: Final answer
    x = 42,485,451.97

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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.