Home / 21,508,778.40-32,259,481.20-8,038,672.80

Finding the Fourth Proportional to 21,508,778.40, 32,259,481.20 and 8,038,672.80

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Solution

The fourth proportional to 21,508,778.40, 32,259,481.20 and 8,038,672.80 is: 12,056,631.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,508,778.40 : 32,259,481.20 = 8,038,672.80 : x
  2. Step 2: Convert to fraction form
    21,508,778.40/32,259,481.20 = 8,038,672.80/x
  3. Step 3: Cross multiply
    21,508,778.40x = 32,259,481.20 × 8,038,672.80
  4. Step 4: Simplify right side
    21,508,778.40x = 259,323,414,064,551.34
  5. Step 5: Solve for x
    x = 259,323,414,064,551.34/21,508,778.40
  6. Step 6: Final answer
    x = 12,056,631.45

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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.