Home / 12,456,009.40-18,684,014.10-11,339,983.30

Finding the Fourth Proportional to 12,456,009.40, 18,684,014.10 and 11,339,983.30

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Solution

The fourth proportional to 12,456,009.40, 18,684,014.10 and 11,339,983.30 is: 17,009,974.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,009.40 : 18,684,014.10 = 11,339,983.30 : x
  2. Step 2: Convert to fraction form
    12,456,009.40/18,684,014.10 = 11,339,983.30/x
  3. Step 3: Cross multiply
    12,456,009.40x = 18,684,014.10 × 11,339,983.30
  4. Step 4: Simplify right side
    12,456,009.40x = 211,876,407,870,964.56
  5. Step 5: Solve for x
    x = 211,876,407,870,964.56/12,456,009.40
  6. Step 6: Final answer
    x = 17,009,974.95

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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.