Home / 220,169,680.80-330,254,521.20-66,815,491.20

Finding the Fourth Proportional to 220,169,680.80, 330,254,521.20 and 66,815,491.20

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Solution

The fourth proportional to 220,169,680.80, 330,254,521.20 and 66,815,491.20 is: 100,223,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,169,680.80 : 330,254,521.20 = 66,815,491.20 : x
  2. Step 2: Convert to fraction form
    220,169,680.80/330,254,521.20 = 66,815,491.20/x
  3. Step 3: Cross multiply
    220,169,680.80x = 330,254,521.20 × 66,815,491.20
  4. Step 4: Simplify right side
    220,169,680.80x = 22,066,118,054,998,812
  5. Step 5: Solve for x
    x = 22,066,118,054,998,812/220,169,680.80
  6. Step 6: Final answer
    x = 100,223,236.80

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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.