Home / 12,614,785.40-18,934,140.94-7,807,934.36

Finding the Fourth Proportional to 12,614,785.40, 18,934,140.94 and 7,807,934.36

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Solution

The fourth proportional to 12,614,785.40, 18,934,140.94 and 7,807,934.36 is: 11,719,305.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,614,785.40 : 18,934,140.94 = 7,807,934.36 : x
  2. Step 2: Convert to fraction form
    12,614,785.40/18,934,140.94 = 7,807,934.36/x
  3. Step 3: Cross multiply
    12,614,785.40x = 18,934,140.94 × 7,807,934.36
  4. Step 4: Simplify right side
    12,614,785.40x = 147,836,529,622,508.72
  5. Step 5: Solve for x
    x = 147,836,529,622,508.72/12,614,785.40
  6. Step 6: Final answer
    x = 11,719,305.95

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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.