Home / 12,439,026.50-18,616,405.35-7,649,753.54

Finding the Fourth Proportional to 12,439,026.50, 18,616,405.35 and 7,649,753.54

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Solution

The fourth proportional to 12,439,026.50, 18,616,405.35 and 7,649,753.54 is: 11,448,718.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439,026.50 : 18,616,405.35 = 7,649,753.54 : x
  2. Step 2: Convert to fraction form
    12,439,026.50/18,616,405.35 = 7,649,753.54/x
  3. Step 3: Cross multiply
    12,439,026.50x = 18,616,405.35 × 7,649,753.54
  4. Step 4: Simplify right side
    12,439,026.50x = 142,410,912,728,237.44
  5. Step 5: Solve for x
    x = 142,410,912,728,237.44/12,439,026.50
  6. Step 6: Final answer
    x = 11,448,718.49

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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.