Home / 12,484,815.20-18,706,227.60-8,222,789.60

Finding the Fourth Proportional to 12,484,815.20, 18,706,227.60 and 8,222,789.60

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Solution

The fourth proportional to 12,484,815.20, 18,706,227.60 and 8,222,789.60 is: 12,320,356.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484,815.20 : 18,706,227.60 = 8,222,789.60 : x
  2. Step 2: Convert to fraction form
    12,484,815.20/18,706,227.60 = 8,222,789.60/x
  3. Step 3: Cross multiply
    12,484,815.20x = 18,706,227.60 × 8,222,789.60
  4. Step 4: Simplify right side
    12,484,815.20x = 153,817,373,764,512.97
  5. Step 5: Solve for x
    x = 153,817,373,764,512.97/12,484,815.20
  6. Step 6: Final answer
    x = 12,320,356.47

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1.5x scale

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.