Home / 485,770,858.20-728,656,287.30-240,165,400.05

Finding the Fourth Proportional to 485,770,858.20, 728,656,287.30 and 240,165,400.05

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Solution

The fourth proportional to 485,770,858.20, 728,656,287.30 and 240,165,400.05 is: 360,248,100.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,770,858.20 : 728,656,287.30 = 240,165,400.05 : x
  2. Step 2: Convert to fraction form
    485,770,858.20/728,656,287.30 = 240,165,400.05/x
  3. Step 3: Cross multiply
    485,770,858.20x = 728,656,287.30 × 240,165,400.05
  4. Step 4: Simplify right side
    485,770,858.20x = 174,998,028,738,352,224
  5. Step 5: Solve for x
    x = 174,998,028,738,352,224/485,770,858.20
  6. Step 6: Final answer
    x = 360,248,100.08

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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.