Home / 485,918,447.80-728,941,607.70-179,425,852.60

Finding the Fourth Proportional to 485,918,447.80, 728,941,607.70 and 179,425,852.60

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Solution

The fourth proportional to 485,918,447.80, 728,941,607.70 and 179,425,852.60 is: 269,162,387.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,918,447.80 : 728,941,607.70 = 179,425,852.60 : x
  2. Step 2: Convert to fraction form
    485,918,447.80/728,941,607.70 = 179,425,852.60/x
  3. Step 3: Cross multiply
    485,918,447.80x = 728,941,607.70 × 179,425,852.60
  4. Step 4: Simplify right side
    485,918,447.80x = 130,790,969,457,187,232
  5. Step 5: Solve for x
    x = 130,790,969,457,187,232/485,918,447.80
  6. Step 6: Final answer
    x = 269,162,387.33

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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.