Home / 12,356,515.20-18,540,021.60-5,963,476.80

Finding the Fourth Proportional to 12,356,515.20, 18,540,021.60 and 5,963,476.80

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Solution

The fourth proportional to 12,356,515.20, 18,540,021.60 and 5,963,476.80 is: 8,947,748.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356,515.20 : 18,540,021.60 = 5,963,476.80 : x
  2. Step 2: Convert to fraction form
    12,356,515.20/18,540,021.60 = 5,963,476.80/x
  3. Step 3: Cross multiply
    12,356,515.20x = 18,540,021.60 × 5,963,476.80
  4. Step 4: Simplify right side
    12,356,515.20x = 110,562,988,683,098.89
  5. Step 5: Solve for x
    x = 110,562,988,683,098.89/12,356,515.20
  6. Step 6: Final answer
    x = 8,947,748.37

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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.