Home / 485,540,002.40-728,310,003.60-322,281,327.20

Finding the Fourth Proportional to 485,540,002.40, 728,310,003.60 and 322,281,327.20

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Solution

The fourth proportional to 485,540,002.40, 728,310,003.60 and 322,281,327.20 is: 483,421,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,540,002.40 : 728,310,003.60 = 322,281,327.20 : x
  2. Step 2: Convert to fraction form
    485,540,002.40/728,310,003.60 = 322,281,327.20/x
  3. Step 3: Cross multiply
    485,540,002.40x = 728,310,003.60 × 322,281,327.20
  4. Step 4: Simplify right side
    485,540,002.40x = 234,720,714,573,244,768
  5. Step 5: Solve for x
    x = 234,720,714,573,244,768/485,540,002.40
  6. Step 6: Final answer
    x = 483,421,990.80

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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.