Home / 12,481,802.40-18,685,378.80-11,743,600.80

Finding the Fourth Proportional to 12,481,802.40, 18,685,378.80 and 11,743,600.80

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Solution

The fourth proportional to 12,481,802.40, 18,685,378.80 and 11,743,600.80 is: 17,580,283.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,802.40 : 18,685,378.80 = 11,743,600.80 : x
  2. Step 2: Convert to fraction form
    12,481,802.40/18,685,378.80 = 11,743,600.80/x
  3. Step 3: Cross multiply
    12,481,802.40x = 18,685,378.80 × 11,743,600.80
  4. Step 4: Simplify right side
    12,481,802.40x = 219,433,629,423,983.06
  5. Step 5: Solve for x
    x = 219,433,629,423,983.06/12,481,802.40
  6. Step 6: Final answer
    x = 17,580,283.87

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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.