Home / 12,123,702-18,185,691.24-4,146,148.08

Finding the Fourth Proportional to 12,123,702, 18,185,691.24 and 4,146,148.08

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Solution

The fourth proportional to 12,123,702, 18,185,691.24 and 4,146,148.08 is: 6,219,269.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123,702 : 18,185,691.24 = 4,146,148.08 : x
  2. Step 2: Convert to fraction form
    12,123,702/18,185,691.24 = 4,146,148.08/x
  3. Step 3: Cross multiply
    12,123,702x = 18,185,691.24 × 4,146,148.08
  4. Step 4: Simplify right side
    12,123,702x = 75,400,568,818,198.81
  5. Step 5: Solve for x
    x = 75,400,568,818,198.81/12,123,702
  6. Step 6: Final answer
    x = 6,219,269.40

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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.