Home / 12,606,470.80-18,909,706.20-11,859,974.80

Finding the Fourth Proportional to 12,606,470.80, 18,909,706.20 and 11,859,974.80

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Solution

The fourth proportional to 12,606,470.80, 18,909,706.20 and 11,859,974.80 is: 17,789,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606,470.80 : 18,909,706.20 = 11,859,974.80 : x
  2. Step 2: Convert to fraction form
    12,606,470.80/18,909,706.20 = 11,859,974.80/x
  3. Step 3: Cross multiply
    12,606,470.80x = 18,909,706.20 × 11,859,974.80
  4. Step 4: Simplify right side
    12,606,470.80x = 224,268,639,007,403.75
  5. Step 5: Solve for x
    x = 224,268,639,007,403.75/12,606,470.80
  6. Step 6: Final answer
    x = 17,789,962.20

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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.