Home / 21,790,549.22-30,069,987.48-12,491,452.76

Finding the Fourth Proportional to 21,790,549.22, 30,069,987.48 and 12,491,452.76

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Solution

The fourth proportional to 21,790,549.22, 30,069,987.48 and 12,491,452.76 is: 17,237,648.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790,549.22 : 30,069,987.48 = 12,491,452.76 : x
  2. Step 2: Convert to fraction form
    21,790,549.22/30,069,987.48 = 12,491,452.76/x
  3. Step 3: Cross multiply
    21,790,549.22x = 30,069,987.48 × 12,491,452.76
  4. Step 4: Simplify right side
    21,790,549.22x = 375,617,827,949,861.56
  5. Step 5: Solve for x
    x = 375,617,827,949,861.56/21,790,549.22
  6. Step 6: Final answer
    x = 17,237,648.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.