Home / 56,894,858.33-78,515,143.86-30,789,377.43

Finding the Fourth Proportional to 56,894,858.33, 78,515,143.86 and 30,789,377.43

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Solution

The fourth proportional to 56,894,858.33, 78,515,143.86 and 30,789,377.43 is: 42,489,470.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,894,858.33 : 78,515,143.86 = 30,789,377.43 : x
  2. Step 2: Convert to fraction form
    56,894,858.33/78,515,143.86 = 30,789,377.43/x
  3. Step 3: Cross multiply
    56,894,858.33x = 78,515,143.86 × 30,789,377.43
  4. Step 4: Simplify right side
    56,894,858.33x = 2,417,432,398,276,287
  5. Step 5: Solve for x
    x = 2,417,432,398,276,287/56,894,858.33
  6. Step 6: Final answer
    x = 42,489,470.39

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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.