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Finding the Fourth Proportional to 8,651,497.82, 12,978,135.18 and 3,264,681.71

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Solution

The fourth proportional to 8,651,497.82, 12,978,135.18 and 3,264,681.71 is: 4,897,357.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651,497.82 : 12,978,135.18 = 3,264,681.71 : x
  2. Step 2: Convert to fraction form
    8,651,497.82/12,978,135.18 = 3,264,681.71/x
  3. Step 3: Cross multiply
    8,651,497.82x = 12,978,135.18 × 3,264,681.71
  4. Step 4: Simplify right side
    8,651,497.82x = 42,369,480,552,053.55
  5. Step 5: Solve for x
    x = 42,369,480,552,053.55/8,651,497.82
  6. Step 6: Final answer
    x = 4,897,357.83

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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.