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Finding the Fourth Proportional to 8,978,034.68, 13,468,943.42 and 2,912,292.78

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Solution

The fourth proportional to 8,978,034.68, 13,468,943.42 and 2,912,292.78 is: 4,369,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,978,034.68 : 13,468,943.42 = 2,912,292.78 : x
  2. Step 2: Convert to fraction form
    8,978,034.68/13,468,943.42 = 2,912,292.78/x
  3. Step 3: Cross multiply
    8,978,034.68x = 13,468,943.42 × 2,912,292.78
  4. Step 4: Simplify right side
    8,978,034.68x = 39,225,506,676,294.51
  5. Step 5: Solve for x
    x = 39,225,506,676,294.51/8,978,034.68
  6. Step 6: Final answer
    x = 4,369,052.70

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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.