Home / 12,456,868.80-18,685,303.20-11,449,099.20

Finding the Fourth Proportional to 12,456,868.80, 18,685,303.20 and 11,449,099.20

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Solution

The fourth proportional to 12,456,868.80, 18,685,303.20 and 11,449,099.20 is: 17,173,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,868.80 : 18,685,303.20 = 11,449,099.20 : x
  2. Step 2: Convert to fraction form
    12,456,868.80/18,685,303.20 = 11,449,099.20/x
  3. Step 3: Cross multiply
    12,456,868.80x = 18,685,303.20 × 11,449,099.20
  4. Step 4: Simplify right side
    12,456,868.80x = 213,929,889,918,877.41
  5. Step 5: Solve for x
    x = 213,929,889,918,877.41/12,456,868.80
  6. Step 6: Final answer
    x = 17,173,648.80

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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.