Home / 15,177,462.12-20,951,956.26-8,980,560.36

Finding the Fourth Proportional to 15,177,462.12, 20,951,956.26 and 8,980,560.36

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Solution

The fourth proportional to 15,177,462.12, 20,951,956.26 and 8,980,560.36 is: 12,397,349.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,177,462.12 : 20,951,956.26 = 8,980,560.36 : x
  2. Step 2: Convert to fraction form
    15,177,462.12/20,951,956.26 = 8,980,560.36/x
  3. Step 3: Cross multiply
    15,177,462.12x = 20,951,956.26 × 8,980,560.36
  4. Step 4: Simplify right side
    15,177,462.12x = 188,160,307,853,009.84
  5. Step 5: Solve for x
    x = 188,160,307,853,009.84/15,177,462.12
  6. Step 6: Final answer
    x = 12,397,349.86

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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.