Home / 87,806,579.20-131,709,868.80-86,126,963.20

Finding the Fourth Proportional to 87,806,579.20, 131,709,868.80 and 86,126,963.20

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Solution

The fourth proportional to 87,806,579.20, 131,709,868.80 and 86,126,963.20 is: 129,190,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,806,579.20 : 131,709,868.80 = 86,126,963.20 : x
  2. Step 2: Convert to fraction form
    87,806,579.20/131,709,868.80 = 86,126,963.20/x
  3. Step 3: Cross multiply
    87,806,579.20x = 131,709,868.80 × 86,126,963.20
  4. Step 4: Simplify right side
    87,806,579.20x = 11,343,771,023,214,428
  5. Step 5: Solve for x
    x = 11,343,771,023,214,428/87,806,579.20
  6. Step 6: Final answer
    x = 129,190,444.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.