Home / 21,591,881.60-32,389,496.76-7,215,000.80

Finding the Fourth Proportional to 21,591,881.60, 32,389,496.76 and 7,215,000.80

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Solution

The fourth proportional to 21,591,881.60, 32,389,496.76 and 7,215,000.80 is: 10,823,060.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,591,881.60 : 32,389,496.76 = 7,215,000.80 : x
  2. Step 2: Convert to fraction form
    21,591,881.60/32,389,496.76 = 7,215,000.80/x
  3. Step 3: Cross multiply
    21,591,881.60x = 32,389,496.76 × 7,215,000.80
  4. Step 4: Simplify right side
    21,591,881.60x = 233,690,245,034,997.41
  5. Step 5: Solve for x
    x = 233,690,245,034,997.41/21,591,881.60
  6. Step 6: Final answer
    x = 10,823,060.69

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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.