Home / 485,918,448.80-728,941,609.20-179,425,853.60

Finding the Fourth Proportional to 485,918,448.80, 728,941,609.20 and 179,425,853.60

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Solution

The fourth proportional to 485,918,448.80, 728,941,609.20 and 179,425,853.60 is: 269,162,388.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,918,448.80 : 728,941,609.20 = 179,425,853.60 : x
  2. Step 2: Convert to fraction form
    485,918,448.80/728,941,609.20 = 179,425,853.60/x
  3. Step 3: Cross multiply
    485,918,448.80x = 728,941,609.20 × 179,425,853.60
  4. Step 4: Simplify right side
    485,918,448.80x = 130,790,970,455,267,616
  5. Step 5: Solve for x
    x = 130,790,970,455,267,616/485,918,448.80
  6. Step 6: Final answer
    x = 269,162,388.83

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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.