Home / 12,427,638.10-18,642,121.44-3,908,638.86

Finding the Fourth Proportional to 12,427,638.10, 18,642,121.44 and 3,908,638.86

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Solution

The fourth proportional to 12,427,638.10, 18,642,121.44 and 3,908,638.86 is: 5,863,167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427,638.10 : 18,642,121.44 = 3,908,638.86 : x
  2. Step 2: Convert to fraction form
    12,427,638.10/18,642,121.44 = 3,908,638.86/x
  3. Step 3: Cross multiply
    12,427,638.10x = 18,642,121.44 × 3,908,638.86
  4. Step 4: Simplify right side
    12,427,638.10x = 72,865,320,293,223.16
  5. Step 5: Solve for x
    x = 72,865,320,293,223.16/12,427,638.10
  6. Step 6: Final answer
    x = 5,863,167.22

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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.