Home / 7,231,700.86-9,979,869.68-3,968,819.18

Finding the Fourth Proportional to 7,231,700.86, 9,979,869.68 and 3,968,819.18

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Solution

The fourth proportional to 7,231,700.86, 9,979,869.68 and 3,968,819.18 is: 5,477,037.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,700.86 : 9,979,869.68 = 3,968,819.18 : x
  2. Step 2: Convert to fraction form
    7,231,700.86/9,979,869.68 = 3,968,819.18/x
  3. Step 3: Cross multiply
    7,231,700.86x = 9,979,869.68 × 3,968,819.18
  4. Step 4: Simplify right side
    7,231,700.86x = 39,608,298,199,884.46
  5. Step 5: Solve for x
    x = 39,608,298,199,884.46/7,231,700.86
  6. Step 6: Final answer
    x = 5,477,037.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.