Home / 12,471,813.30-18,693,723.15-5,282,123.70

Finding the Fourth Proportional to 12,471,813.30, 18,693,723.15 and 5,282,123.70

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Solution

The fourth proportional to 12,471,813.30, 18,693,723.15 and 5,282,123.70 is: 7,917,257.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471,813.30 : 18,693,723.15 = 5,282,123.70 : x
  2. Step 2: Convert to fraction form
    12,471,813.30/18,693,723.15 = 5,282,123.70/x
  3. Step 3: Cross multiply
    12,471,813.30x = 18,693,723.15 × 5,282,123.70
  4. Step 4: Simplify right side
    12,471,813.30x = 98,742,558,091,853.66
  5. Step 5: Solve for x
    x = 98,742,558,091,853.66/12,471,813.30
  6. Step 6: Final answer
    x = 7,917,257.56

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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.