Home / 78,707,443.61-117,253,378.38-75,166,191.24

Finding the Fourth Proportional to 78,707,443.61, 117,253,378.38 and 75,166,191.24

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Solution

The fourth proportional to 78,707,443.61, 117,253,378.38 and 75,166,191.24 is: 111,977,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,707,443.61 : 117,253,378.38 = 75,166,191.24 : x
  2. Step 2: Convert to fraction form
    78,707,443.61/117,253,378.38 = 75,166,191.24/x
  3. Step 3: Cross multiply
    78,707,443.61x = 117,253,378.38 × 75,166,191.24
  4. Step 4: Simplify right side
    78,707,443.61x = 8,813,489,862,847,160
  5. Step 5: Solve for x
    x = 8,813,489,862,847,160/78,707,443.61
  6. Step 6: Final answer
    x = 111,977,844.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.