Home / 12,458,424.20-18,692,885.10-6,782,721.80

Finding the Fourth Proportional to 12,458,424.20, 18,692,885.10 and 6,782,721.80

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Solution

The fourth proportional to 12,458,424.20, 18,692,885.10 and 6,782,721.80 is: 10,176,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,424.20 : 18,692,885.10 = 6,782,721.80 : x
  2. Step 2: Convert to fraction form
    12,458,424.20/18,692,885.10 = 6,782,721.80/x
  3. Step 3: Cross multiply
    12,458,424.20x = 18,692,885.10 × 6,782,721.80
  4. Step 4: Simplify right side
    12,458,424.20x = 126,788,639,272,665.19
  5. Step 5: Solve for x
    x = 126,788,639,272,665.19/12,458,424.20
  6. Step 6: Final answer
    x = 10,176,940.30

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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.