Home / 12,295,274.80-18,442,912.20-11,940,980.80

Finding the Fourth Proportional to 12,295,274.80, 18,442,912.20 and 11,940,980.80

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Solution

The fourth proportional to 12,295,274.80, 18,442,912.20 and 11,940,980.80 is: 17,911,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295,274.80 : 18,442,912.20 = 11,940,980.80 : x
  2. Step 2: Convert to fraction form
    12,295,274.80/18,442,912.20 = 11,940,980.80/x
  3. Step 3: Cross multiply
    12,295,274.80x = 18,442,912.20 × 11,940,980.80
  4. Step 4: Simplify right side
    12,295,274.80x = 220,226,460,476,285.75
  5. Step 5: Solve for x
    x = 220,226,460,476,285.75/12,295,274.80
  6. Step 6: Final answer
    x = 17,911,471.20

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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.