Home / 72,611,198.28-100,203,451.56-40,016,150.28

Finding the Fourth Proportional to 72,611,198.28, 100,203,451.56 and 40,016,150.28

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Solution

The fourth proportional to 72,611,198.28, 100,203,451.56 and 40,016,150.28 is: 55,222,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,611,198.28 : 100,203,451.56 = 40,016,150.28 : x
  2. Step 2: Convert to fraction form
    72,611,198.28/100,203,451.56 = 40,016,150.28/x
  3. Step 3: Cross multiply
    72,611,198.28x = 100,203,451.56 × 40,016,150.28
  4. Step 4: Simplify right side
    72,611,198.28x = 4,009,756,376,199,660.50
  5. Step 5: Solve for x
    x = 4,009,756,376,199,660.50/72,611,198.28
  6. Step 6: Final answer
    x = 55,222,286.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.