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Finding the Fourth Proportional to 8,978,889.30, 13,468,333.95 and 8,837,171.70

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Solution

The fourth proportional to 8,978,889.30, 13,468,333.95 and 8,837,171.70 is: 13,255,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,978,889.30 : 13,468,333.95 = 8,837,171.70 : x
  2. Step 2: Convert to fraction form
    8,978,889.30/13,468,333.95 = 8,837,171.70/x
  3. Step 3: Cross multiply
    8,978,889.30x = 13,468,333.95 × 8,837,171.70
  4. Step 4: Simplify right side
    8,978,889.30x = 119,021,979,629,089.20
  5. Step 5: Solve for x
    x = 119,021,979,629,089.20/8,978,889.30
  6. Step 6: Final answer
    x = 13,255,757.55

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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.