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Finding the Fourth Proportional to 6,397,635.96, 8,827,315.20 and 3,681,381.96

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Solution

The fourth proportional to 6,397,635.96, 8,827,315.20 and 3,681,381.96 is: 5,079,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,397,635.96 : 8,827,315.20 = 3,681,381.96 : x
  2. Step 2: Convert to fraction form
    6,397,635.96/8,827,315.20 = 3,681,381.96/x
  3. Step 3: Cross multiply
    6,397,635.96x = 8,827,315.20 × 3,681,381.96
  4. Step 4: Simplify right side
    6,397,635.96x = 32,496,718,932,513.79
  5. Step 5: Solve for x
    x = 32,496,718,932,513.79/6,397,635.96
  6. Step 6: Final answer
    x = 5,079,488.60

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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.