Home / 12,101,129.60-18,151,694.40-6,992,297.60

Finding the Fourth Proportional to 12,101,129.60, 18,151,694.40 and 6,992,297.60

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Solution

The fourth proportional to 12,101,129.60, 18,151,694.40 and 6,992,297.60 is: 10,488,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101,129.60 : 18,151,694.40 = 6,992,297.60 : x
  2. Step 2: Convert to fraction form
    12,101,129.60/18,151,694.40 = 6,992,297.60/x
  3. Step 3: Cross multiply
    12,101,129.60x = 18,151,694.40 × 6,992,297.60
  4. Step 4: Simplify right side
    12,101,129.60x = 126,922,049,189,053.42
  5. Step 5: Solve for x
    x = 126,922,049,189,053.42/12,101,129.60
  6. Step 6: Final answer
    x = 10,488,446.40

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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.