Home / 485,622,346.80-728,433,520.20-434,604,010.80

Finding the Fourth Proportional to 485,622,346.80, 728,433,520.20 and 434,604,010.80

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Solution

The fourth proportional to 485,622,346.80, 728,433,520.20 and 434,604,010.80 is: 651,906,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,622,346.80 : 728,433,520.20 = 434,604,010.80 : x
  2. Step 2: Convert to fraction form
    485,622,346.80/728,433,520.20 = 434,604,010.80/x
  3. Step 3: Cross multiply
    485,622,346.80x = 728,433,520.20 × 434,604,010.80
  4. Step 4: Simplify right side
    485,622,346.80x = 316,580,129,480,082,816
  5. Step 5: Solve for x
    x = 316,580,129,480,082,816/485,622,346.80
  6. Step 6: Final answer
    x = 651,906,016.20

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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.