Home / 12,540,242.54-18,805,850.80-4,340,656.89

Finding the Fourth Proportional to 12,540,242.54, 18,805,850.80 and 4,340,656.89

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Solution

The fourth proportional to 12,540,242.54, 18,805,850.80 and 4,340,656.89 is: 6,509,423.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540,242.54 : 18,805,850.80 = 4,340,656.89 : x
  2. Step 2: Convert to fraction form
    12,540,242.54/18,805,850.80 = 4,340,656.89/x
  3. Step 3: Cross multiply
    12,540,242.54x = 18,805,850.80 × 4,340,656.89
  4. Step 4: Simplify right side
    12,540,242.54x = 81,629,745,836,480.36
  5. Step 5: Solve for x
    x = 81,629,745,836,480.36/12,540,242.54
  6. Step 6: Final answer
    x = 6,509,423.21

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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.