Home / 92,783,116.20-138,891,239.10-72,375,781.80

Finding the Fourth Proportional to 92,783,116.20, 138,891,239.10 and 72,375,781.80

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Solution

The fourth proportional to 92,783,116.20, 138,891,239.10 and 72,375,781.80 is: 108,342,578.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,783,116.20 : 138,891,239.10 = 72,375,781.80 : x
  2. Step 2: Convert to fraction form
    92,783,116.20/138,891,239.10 = 72,375,781.80/x
  3. Step 3: Cross multiply
    92,783,116.20x = 138,891,239.10 × 72,375,781.80
  4. Step 4: Simplify right side
    92,783,116.20x = 10,052,362,015,033,228
  5. Step 5: Solve for x
    x = 10,052,362,015,033,228/92,783,116.20
  6. Step 6: Final answer
    x = 108,342,578.12

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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.