Home / 87,801,442.86-121,161,219.20-48,640,883.98

Finding the Fourth Proportional to 87,801,442.86, 121,161,219.20 and 48,640,883.98

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Solution

The fourth proportional to 87,801,442.86, 121,161,219.20 and 48,640,883.98 is: 67,121,776.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,801,442.86 : 121,161,219.20 = 48,640,883.98 : x
  2. Step 2: Convert to fraction form
    87,801,442.86/121,161,219.20 = 48,640,883.98/x
  3. Step 3: Cross multiply
    87,801,442.86x = 121,161,219.20 × 48,640,883.98
  4. Step 4: Simplify right side
    87,801,442.86x = 5,893,388,805,982,548
  5. Step 5: Solve for x
    x = 5,893,388,805,982,548/87,801,442.86
  6. Step 6: Final answer
    x = 67,121,776.29

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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.