Home / 21,491,813.40-32,237,720.10-20,231,064.60

Finding the Fourth Proportional to 21,491,813.40, 32,237,720.10 and 20,231,064.60

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Solution

The fourth proportional to 21,491,813.40, 32,237,720.10 and 20,231,064.60 is: 30,346,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,491,813.40 : 32,237,720.10 = 20,231,064.60 : x
  2. Step 2: Convert to fraction form
    21,491,813.40/32,237,720.10 = 20,231,064.60/x
  3. Step 3: Cross multiply
    21,491,813.40x = 32,237,720.10 × 20,231,064.60
  4. Step 4: Simplify right side
    21,491,813.40x = 652,203,397,899,818.50
  5. Step 5: Solve for x
    x = 652,203,397,899,818.50/21,491,813.40
  6. Step 6: Final answer
    x = 30,346,596.90

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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.