Home / 485,526,277.80-728,289,416.70-441,310,386.60

Finding the Fourth Proportional to 485,526,277.80, 728,289,416.70 and 441,310,386.60

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Solution

The fourth proportional to 485,526,277.80, 728,289,416.70 and 441,310,386.60 is: 661,965,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,526,277.80 : 728,289,416.70 = 441,310,386.60 : x
  2. Step 2: Convert to fraction form
    485,526,277.80/728,289,416.70 = 441,310,386.60/x
  3. Step 3: Cross multiply
    485,526,277.80x = 728,289,416.70 × 441,310,386.60
  4. Step 4: Simplify right side
    485,526,277.80x = 321,401,684,040,565,504
  5. Step 5: Solve for x
    x = 321,401,684,040,565,504/485,526,277.80
  6. Step 6: Final answer
    x = 661,965,579.90

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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.