Home / 12,148,316.40-18,222,766.20-3,628,930.80

Finding the Fourth Proportional to 12,148,316.40, 18,222,766.20 and 3,628,930.80

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Solution

The fourth proportional to 12,148,316.40, 18,222,766.20 and 3,628,930.80 is: 5,443,483.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148,316.40 : 18,222,766.20 = 3,628,930.80 : x
  2. Step 2: Convert to fraction form
    12,148,316.40/18,222,766.20 = 3,628,930.80/x
  3. Step 3: Cross multiply
    12,148,316.40x = 18,222,766.20 × 3,628,930.80
  4. Step 4: Simplify right side
    12,148,316.40x = 66,129,157,524,378.95
  5. Step 5: Solve for x
    x = 66,129,157,524,378.95/12,148,316.40
  6. Step 6: Final answer
    x = 5,443,483.31

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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.