Home / 15,185,023.08-20,955,331.38-8,309,505.96

Finding the Fourth Proportional to 15,185,023.08, 20,955,331.38 and 8,309,505.96

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Solution

The fourth proportional to 15,185,023.08, 20,955,331.38 and 8,309,505.96 is: 11,467,117.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,185,023.08 : 20,955,331.38 = 8,309,505.96 : x
  2. Step 2: Convert to fraction form
    15,185,023.08/20,955,331.38 = 8,309,505.96/x
  3. Step 3: Cross multiply
    15,185,023.08x = 20,955,331.38 × 8,309,505.96
  4. Step 4: Simplify right side
    15,185,023.08x = 174,128,450,995,885
  5. Step 5: Solve for x
    x = 174,128,450,995,885/15,185,023.08
  6. Step 6: Final answer
    x = 11,467,117.97

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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.