Home / 87,950,969.53-121,321,911.51-54,853,757.93

Finding the Fourth Proportional to 87,950,969.53, 121,321,911.51 and 54,853,757.93

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Solution

The fourth proportional to 87,950,969.53, 121,321,911.51 and 54,853,757.93 is: 75,666,735.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,950,969.53 : 121,321,911.51 = 54,853,757.93 : x
  2. Step 2: Convert to fraction form
    87,950,969.53/121,321,911.51 = 54,853,757.93/x
  3. Step 3: Cross multiply
    87,950,969.53x = 121,321,911.51 × 54,853,757.93
  4. Step 4: Simplify right side
    87,950,969.53x = 6,654,962,765,574,421
  5. Step 5: Solve for x
    x = 6,654,962,765,574,421/87,950,969.53
  6. Step 6: Final answer
    x = 75,666,735.70

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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.