Home / 12,722,856.70-17,557,618.60-6,921,679.96

Finding the Fourth Proportional to 12,722,856.70, 17,557,618.60 and 6,921,679.96

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Solution

The fourth proportional to 12,722,856.70, 17,557,618.60 and 6,921,679.96 is: 9,551,959.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722,856.70 : 17,557,618.60 = 6,921,679.96 : x
  2. Step 2: Convert to fraction form
    12,722,856.70/17,557,618.60 = 6,921,679.96/x
  3. Step 3: Cross multiply
    12,722,856.70x = 17,557,618.60 × 6,921,679.96
  4. Step 4: Simplify right side
    12,722,856.70x = 121,528,216,808,943.27
  5. Step 5: Solve for x
    x = 121,528,216,808,943.27/12,722,856.70
  6. Step 6: Final answer
    x = 9,551,959.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.