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Finding the Fourth Proportional to 6,411,387.88, 8,829,874.02 and 4,955,720.68

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Solution

The fourth proportional to 6,411,387.88, 8,829,874.02 and 4,955,720.68 is: 6,825,104.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,411,387.88 : 8,829,874.02 = 4,955,720.68 : x
  2. Step 2: Convert to fraction form
    6,411,387.88/8,829,874.02 = 4,955,720.68/x
  3. Step 3: Cross multiply
    6,411,387.88x = 8,829,874.02 × 4,955,720.68
  4. Step 4: Simplify right side
    6,411,387.88x = 43,758,389,282,708.73
  5. Step 5: Solve for x
    x = 43,758,389,282,708.73/6,411,387.88
  6. Step 6: Final answer
    x = 6,825,104.03

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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.