Home / 87,938,999.10-131,908,498.65-74,900,979.90

Finding the Fourth Proportional to 87,938,999.10, 131,908,498.65 and 74,900,979.90

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Solution

The fourth proportional to 87,938,999.10, 131,908,498.65 and 74,900,979.90 is: 112,351,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,938,999.10 : 131,908,498.65 = 74,900,979.90 : x
  2. Step 2: Convert to fraction form
    87,938,999.10/131,908,498.65 = 74,900,979.90/x
  3. Step 3: Cross multiply
    87,938,999.10x = 131,908,498.65 × 74,900,979.90
  4. Step 4: Simplify right side
    87,938,999.10x = 9,880,075,806,022,828
  5. Step 5: Solve for x
    x = 9,880,075,806,022,828/87,938,999.10
  6. Step 6: Final answer
    x = 112,351,469.85

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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.