Home / 15,195,719.68-20,968,171.92-12,106,079.20

Finding the Fourth Proportional to 15,195,719.68, 20,968,171.92 and 12,106,079.20

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Solution

The fourth proportional to 15,195,719.68, 20,968,171.92 and 12,106,079.20 is: 16,704,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195,719.68 : 20,968,171.92 = 12,106,079.20 : x
  2. Step 2: Convert to fraction form
    15,195,719.68/20,968,171.92 = 12,106,079.20/x
  3. Step 3: Cross multiply
    15,195,719.68x = 20,968,171.92 × 12,106,079.20
  4. Step 4: Simplify right side
    15,195,719.68x = 253,842,349,942,736.06
  5. Step 5: Solve for x
    x = 253,842,349,942,736.06/15,195,719.68
  6. Step 6: Final answer
    x = 16,704,858.69

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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.