Home / 15,037,644.92-20,751,970.98-8,162,128.40

Finding the Fourth Proportional to 15,037,644.92, 20,751,970.98 and 8,162,128.40

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Solution

The fourth proportional to 15,037,644.92, 20,751,970.98 and 8,162,128.40 is: 11,263,748.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,037,644.92 : 20,751,970.98 = 8,162,128.40 : x
  2. Step 2: Convert to fraction form
    15,037,644.92/20,751,970.98 = 8,162,128.40/x
  3. Step 3: Cross multiply
    15,037,644.92x = 20,751,970.98 × 8,162,128.40
  4. Step 4: Simplify right side
    15,037,644.92x = 169,380,251,691,833.84
  5. Step 5: Solve for x
    x = 169,380,251,691,833.84/15,037,644.92
  6. Step 6: Final answer
    x = 11,263,748.59

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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.