Home / 112,345,680.20-168,518,520.30-99,356,649.80

Finding the Fourth Proportional to 112,345,680.20, 168,518,520.30 and 99,356,649.80

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Solution

The fourth proportional to 112,345,680.20, 168,518,520.30 and 99,356,649.80 is: 149,034,974.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,345,680.20 : 168,518,520.30 = 99,356,649.80 : x
  2. Step 2: Convert to fraction form
    112,345,680.20/168,518,520.30 = 99,356,649.80/x
  3. Step 3: Cross multiply
    112,345,680.20x = 168,518,520.30 × 99,356,649.80
  4. Step 4: Simplify right side
    112,345,680.20x = 16,743,435,606,261,292
  5. Step 5: Solve for x
    x = 16,743,435,606,261,292/112,345,680.20
  6. Step 6: Final answer
    x = 149,034,974.70

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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.