Home / 12,618,020.52-18,966,542.80-8,327,644.56

Finding the Fourth Proportional to 12,618,020.52, 18,966,542.80 and 8,327,644.56

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Solution

The fourth proportional to 12,618,020.52, 18,966,542.80 and 8,327,644.56 is: 12,517,543.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,020.52 : 18,966,542.80 = 8,327,644.56 : x
  2. Step 2: Convert to fraction form
    12,618,020.52/18,966,542.80 = 8,327,644.56/x
  3. Step 3: Cross multiply
    12,618,020.52x = 18,966,542.80 × 8,327,644.56
  4. Step 4: Simplify right side
    12,618,020.52x = 157,946,626,970,427.16
  5. Step 5: Solve for x
    x = 157,946,626,970,427.16/12,618,020.52
  6. Step 6: Final answer
    x = 12,517,543.99

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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.