Home / 15,113,793-20,856,724.38-8,238,214.92

Finding the Fourth Proportional to 15,113,793, 20,856,724.38 and 8,238,214.92

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Solution

The fourth proportional to 15,113,793, 20,856,724.38 and 8,238,214.92 is: 11,368,567.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113,793 : 20,856,724.38 = 8,238,214.92 : x
  2. Step 2: Convert to fraction form
    15,113,793/20,856,724.38 = 8,238,214.92/x
  3. Step 3: Cross multiply
    15,113,793x = 20,856,724.38 × 8,238,214.92
  4. Step 4: Simplify right side
    15,113,793x = 171,822,177,969,643.75
  5. Step 5: Solve for x
    x = 171,822,177,969,643.75/15,113,793
  6. Step 6: Final answer
    x = 11,368,567.64

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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.