Home / 72,611,197.28-100,203,450.18-40,016,149.28

Finding the Fourth Proportional to 72,611,197.28, 100,203,450.18 and 40,016,149.28

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Solution

The fourth proportional to 72,611,197.28, 100,203,450.18 and 40,016,149.28 is: 55,222,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,611,197.28 : 100,203,450.18 = 40,016,149.28 : x
  2. Step 2: Convert to fraction form
    72,611,197.28/100,203,450.18 = 40,016,149.28/x
  3. Step 3: Cross multiply
    72,611,197.28x = 100,203,450.18 × 40,016,149.28
  4. Step 4: Simplify right side
    72,611,197.28x = 4,009,756,220,773,923.50
  5. Step 5: Solve for x
    x = 4,009,756,220,773,923.50/72,611,197.28
  6. Step 6: Final answer
    x = 55,222,284.87

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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.