Home / 220,169,912.80-330,254,869.20-66,815,723.20

Finding the Fourth Proportional to 220,169,912.80, 330,254,869.20 and 66,815,723.20

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Solution

The fourth proportional to 220,169,912.80, 330,254,869.20 and 66,815,723.20 is: 100,223,584.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,169,912.80 : 330,254,869.20 = 66,815,723.20 : x
  2. Step 2: Convert to fraction form
    220,169,912.80/330,254,869.20 = 66,815,723.20/x
  3. Step 3: Cross multiply
    220,169,912.80x = 330,254,869.20 × 66,815,723.20
  4. Step 4: Simplify right side
    220,169,912.80x = 22,066,217,925,919,404
  5. Step 5: Solve for x
    x = 22,066,217,925,919,404/220,169,912.80
  6. Step 6: Final answer
    x = 100,223,584.80

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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.