Home / 87,807,784.86-121,175,717.76-48,650,178.42

Finding the Fourth Proportional to 87,807,784.86, 121,175,717.76 and 48,650,178.42

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Solution

The fourth proportional to 87,807,784.86, 121,175,717.76 and 48,650,178.42 is: 67,137,786.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,807,784.86 : 121,175,717.76 = 48,650,178.42 : x
  2. Step 2: Convert to fraction form
    87,807,784.86/121,175,717.76 = 48,650,178.42/x
  3. Step 3: Cross multiply
    87,807,784.86x = 121,175,717.76 × 48,650,178.42
  4. Step 4: Simplify right side
    87,807,784.86x = 5,895,220,289,195,563
  5. Step 5: Solve for x
    x = 5,895,220,289,195,563/87,807,784.86
  6. Step 6: Final answer
    x = 67,137,786.23

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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.