Home / 21,551,772.20-32,327,658.30-19,213,431.80

Finding the Fourth Proportional to 21,551,772.20, 32,327,658.30 and 19,213,431.80

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Solution

The fourth proportional to 21,551,772.20, 32,327,658.30 and 19,213,431.80 is: 28,820,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551,772.20 : 32,327,658.30 = 19,213,431.80 : x
  2. Step 2: Convert to fraction form
    21,551,772.20/32,327,658.30 = 19,213,431.80/x
  3. Step 3: Cross multiply
    21,551,772.20x = 32,327,658.30 × 19,213,431.80
  4. Step 4: Simplify right side
    21,551,772.20x = 621,125,258,000,754
  5. Step 5: Solve for x
    x = 621,125,258,000,754/21,551,772.20
  6. Step 6: Final answer
    x = 28,820,147.70

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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.