Home / 12,781,641.75-19,172,856.29-5,589,473.55

Finding the Fourth Proportional to 12,781,641.75, 19,172,856.29 and 5,589,473.55

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Solution

The fourth proportional to 12,781,641.75, 19,172,856.29 and 5,589,473.55 is: 8,384,382.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,641.75 : 19,172,856.29 = 5,589,473.55 : x
  2. Step 2: Convert to fraction form
    12,781,641.75/19,172,856.29 = 5,589,473.55/x
  3. Step 3: Cross multiply
    12,781,641.75x = 19,172,856.29 × 5,589,473.55
  4. Step 4: Simplify right side
    12,781,641.75x = 107,166,173,082,958.77
  5. Step 5: Solve for x
    x = 107,166,173,082,958.77/12,781,641.75
  6. Step 6: Final answer
    x = 8,384,382.47

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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.