Home / 398,783,999.60-598,175,999.40-156,454,809.20

Finding the Fourth Proportional to 398,783,999.60, 598,175,999.40 and 156,454,809.20

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Solution

The fourth proportional to 398,783,999.60, 598,175,999.40 and 156,454,809.20 is: 234,682,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,783,999.60 : 598,175,999.40 = 156,454,809.20 : x
  2. Step 2: Convert to fraction form
    398,783,999.60/598,175,999.40 = 156,454,809.20/x
  3. Step 3: Cross multiply
    398,783,999.60x = 598,175,999.40 × 156,454,809.20
  4. Step 4: Simplify right side
    398,783,999.60x = 93,587,511,854,146,304
  5. Step 5: Solve for x
    x = 93,587,511,854,146,304/398,783,999.60
  6. Step 6: Final answer
    x = 234,682,213.80

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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.