Home / 12,427,639.10-18,642,122.94-3,908,639.86

Finding the Fourth Proportional to 12,427,639.10, 18,642,122.94 and 3,908,639.86

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Solution

The fourth proportional to 12,427,639.10, 18,642,122.94 and 3,908,639.86 is: 5,863,168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427,639.10 : 18,642,122.94 = 3,908,639.86 : x
  2. Step 2: Convert to fraction form
    12,427,639.10/18,642,122.94 = 3,908,639.86/x
  3. Step 3: Cross multiply
    12,427,639.10x = 18,642,122.94 × 3,908,639.86
  4. Step 4: Simplify right side
    12,427,639.10x = 72,865,344,798,304.39
  5. Step 5: Solve for x
    x = 72,865,344,798,304.39/12,427,639.10
  6. Step 6: Final answer
    x = 5,863,168.72

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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.