Home / 112,345,682.20-168,518,523.30-99,356,651.80

Finding the Fourth Proportional to 112,345,682.20, 168,518,523.30 and 99,356,651.80

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Solution

The fourth proportional to 112,345,682.20, 168,518,523.30 and 99,356,651.80 is: 149,034,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,345,682.20 : 168,518,523.30 = 99,356,651.80 : x
  2. Step 2: Convert to fraction form
    112,345,682.20/168,518,523.30 = 99,356,651.80/x
  3. Step 3: Cross multiply
    112,345,682.20x = 168,518,523.30 × 99,356,651.80
  4. Step 4: Simplify right side
    112,345,682.20x = 16,743,436,241,368,288
  5. Step 5: Solve for x
    x = 16,743,436,241,368,288/112,345,682.20
  6. Step 6: Final answer
    x = 149,034,977.70

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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.