Home / 71,317,381.10-98,418,348.96-40,383,578.30

Finding the Fourth Proportional to 71,317,381.10, 98,418,348.96 and 40,383,578.30

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Solution

The fourth proportional to 71,317,381.10, 98,418,348.96 and 40,383,578.30 is: 55,729,543.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,317,381.10 : 98,418,348.96 = 40,383,578.30 : x
  2. Step 2: Convert to fraction form
    71,317,381.10/98,418,348.96 = 40,383,578.30/x
  3. Step 3: Cross multiply
    71,317,381.10x = 98,418,348.96 × 40,383,578.30
  4. Step 4: Simplify right side
    71,317,381.10x = 3,974,485,101,382,883
  5. Step 5: Solve for x
    x = 3,974,485,101,382,883/71,317,381.10
  6. Step 6: Final answer
    x = 55,729,543.63

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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.