Home / 20,187,512.20-30,281,268.30-18,628,618.60

Finding the Fourth Proportional to 20,187,512.20, 30,281,268.30 and 18,628,618.60

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Solution

The fourth proportional to 20,187,512.20, 30,281,268.30 and 18,628,618.60 is: 27,942,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187,512.20 : 30,281,268.30 = 18,628,618.60 : x
  2. Step 2: Convert to fraction form
    20,187,512.20/30,281,268.30 = 18,628,618.60/x
  3. Step 3: Cross multiply
    20,187,512.20x = 30,281,268.30 × 18,628,618.60
  4. Step 4: Simplify right side
    20,187,512.20x = 564,098,197,884,970.50
  5. Step 5: Solve for x
    x = 564,098,197,884,970.50/20,187,512.20
  6. Step 6: Final answer
    x = 27,942,927.90

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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.