Home / 31,374,620.40-47,061,930.60-8,655,481.20

Finding the Fourth Proportional to 31,374,620.40, 47,061,930.60 and 8,655,481.20

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Solution

The fourth proportional to 31,374,620.40, 47,061,930.60 and 8,655,481.20 is: 12,983,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,374,620.40 : 47,061,930.60 = 8,655,481.20 : x
  2. Step 2: Convert to fraction form
    31,374,620.40/47,061,930.60 = 8,655,481.20/x
  3. Step 3: Cross multiply
    31,374,620.40x = 47,061,930.60 × 8,655,481.20
  4. Step 4: Simplify right side
    31,374,620.40x = 407,343,655,544,004.69
  5. Step 5: Solve for x
    x = 407,343,655,544,004.69/31,374,620.40
  6. Step 6: Final answer
    x = 12,983,221.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.