Home / 12,127,809.90-18,192,006.45-3,608,424.30

Finding the Fourth Proportional to 12,127,809.90, 18,192,006.45 and 3,608,424.30

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Solution

The fourth proportional to 12,127,809.90, 18,192,006.45 and 3,608,424.30 is: 5,412,723.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,809.90 : 18,192,006.45 = 3,608,424.30 : x
  2. Step 2: Convert to fraction form
    12,127,809.90/18,192,006.45 = 3,608,424.30/x
  3. Step 3: Cross multiply
    12,127,809.90x = 18,192,006.45 × 3,608,424.30
  4. Step 4: Simplify right side
    12,127,809.90x = 65,644,478,139,936.73
  5. Step 5: Solve for x
    x = 65,644,478,139,936.73/12,127,809.90
  6. Step 6: Final answer
    x = 5,412,723.21

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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.