Home / 87,950,968.53-121,321,910.13-54,853,756.93

Finding the Fourth Proportional to 87,950,968.53, 121,321,910.13 and 54,853,756.93

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Solution

The fourth proportional to 87,950,968.53, 121,321,910.13 and 54,853,756.93 is: 75,666,734.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,950,968.53 : 121,321,910.13 = 54,853,756.93 : x
  2. Step 2: Convert to fraction form
    87,950,968.53/121,321,910.13 = 54,853,756.93/x
  3. Step 3: Cross multiply
    87,950,968.53x = 121,321,910.13 × 54,853,756.93
  4. Step 4: Simplify right side
    87,950,968.53x = 6,654,962,568,280,805
  5. Step 5: Solve for x
    x = 6,654,962,568,280,805/87,950,968.53
  6. Step 6: Final answer
    x = 75,666,734.32

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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.