Home / 12,191,912.11-18,275,066.42-4,102,079.10

Finding the Fourth Proportional to 12,191,912.11, 18,275,066.42 and 4,102,079.10

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Solution

The fourth proportional to 12,191,912.11, 18,275,066.42 and 4,102,079.10 is: 6,148,811.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191,912.11 : 18,275,066.42 = 4,102,079.10 : x
  2. Step 2: Convert to fraction form
    12,191,912.11/18,275,066.42 = 4,102,079.10/x
  3. Step 3: Cross multiply
    12,191,912.11x = 18,275,066.42 × 4,102,079.10
  4. Step 4: Simplify right side
    12,191,912.11x = 74,965,767,900,708.09
  5. Step 5: Solve for x
    x = 74,965,767,900,708.09/12,191,912.11
  6. Step 6: Final answer
    x = 6,148,811.38

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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.