Home / 679,955,435.20-1,019,933,152.80-220,223,540.80

Finding the Fourth Proportional to 679,955,435.20, 1,019,933,152.80 and 220,223,540.80

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Solution

The fourth proportional to 679,955,435.20, 1,019,933,152.80 and 220,223,540.80 is: 330,335,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,955,435.20 : 1,019,933,152.80 = 220,223,540.80 : x
  2. Step 2: Convert to fraction form
    679,955,435.20/1,019,933,152.80 = 220,223,540.80/x
  3. Step 3: Cross multiply
    679,955,435.20x = 1,019,933,152.80 × 220,223,540.80
  4. Step 4: Simplify right side
    679,955,435.20x = 224,613,290,288,923,424
  5. Step 5: Solve for x
    x = 224,613,290,288,923,424/679,955,435.20
  6. Step 6: Final answer
    x = 330,335,311.20

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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.