Home / 21,489,904.10-32,234,856.15-12,880,559.90

Finding the Fourth Proportional to 21,489,904.10, 32,234,856.15 and 12,880,559.90

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Solution

The fourth proportional to 21,489,904.10, 32,234,856.15 and 12,880,559.90 is: 19,320,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489,904.10 : 32,234,856.15 = 12,880,559.90 : x
  2. Step 2: Convert to fraction form
    21,489,904.10/32,234,856.15 = 12,880,559.90/x
  3. Step 3: Cross multiply
    21,489,904.10x = 32,234,856.15 × 12,880,559.90
  4. Step 4: Simplify right side
    21,489,904.10x = 415,202,995,507,958.38
  5. Step 5: Solve for x
    x = 415,202,995,507,958.38/21,489,904.10
  6. Step 6: Final answer
    x = 19,320,839.85

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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.