Home / 485,060,812.80-728,047,864.80-255,194,865.60

Finding the Fourth Proportional to 485,060,812.80, 728,047,864.80 and 255,194,865.60

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Solution

The fourth proportional to 485,060,812.80, 728,047,864.80 and 255,194,865.60 is: 383,032,543.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,060,812.80 : 728,047,864.80 = 255,194,865.60 : x
  2. Step 2: Convert to fraction form
    485,060,812.80/728,047,864.80 = 255,194,865.60/x
  3. Step 3: Cross multiply
    485,060,812.80x = 728,047,864.80 × 255,194,865.60
  4. Step 4: Simplify right side
    485,060,812.80x = 185,794,077,008,002,944
  5. Step 5: Solve for x
    x = 185,794,077,008,002,944/485,060,812.80
  6. Step 6: Final answer
    x = 383,032,543.77

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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.