Home / 15,037,645.92-20,751,972.36-8,162,129.40

Finding the Fourth Proportional to 15,037,645.92, 20,751,972.36 and 8,162,129.40

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Solution

The fourth proportional to 15,037,645.92, 20,751,972.36 and 8,162,129.40 is: 11,263,749.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,037,645.92 : 20,751,972.36 = 8,162,129.40 : x
  2. Step 2: Convert to fraction form
    15,037,645.92/20,751,972.36 = 8,162,129.40/x
  3. Step 3: Cross multiply
    15,037,645.92x = 20,751,972.36 × 8,162,129.40
  4. Step 4: Simplify right side
    15,037,645.92x = 169,380,283,707,543.38
  5. Step 5: Solve for x
    x = 169,380,283,707,543.38/15,037,645.92
  6. Step 6: Final answer
    x = 11,263,749.97

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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.