Home / 856,285,449.12-1,181,706,402.78-479,948,992.56

Finding the Fourth Proportional to 856,285,449.12, 1,181,706,402.78 and 479,948,992.56

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Solution

The fourth proportional to 856,285,449.12, 1,181,706,402.78 and 479,948,992.56 is: 662,347,816.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,285,449.12 : 1,181,706,402.78 = 479,948,992.56 : x
  2. Step 2: Convert to fraction form
    856,285,449.12/1,181,706,402.78 = 479,948,992.56/x
  3. Step 3: Cross multiply
    856,285,449.12x = 1,181,706,402.78 × 479,948,992.56
  4. Step 4: Simplify right side
    856,285,449.12x = 567,158,797,515,962,560
  5. Step 5: Solve for x
    x = 567,158,797,515,962,560/856,285,449.12
  6. Step 6: Final answer
    x = 662,347,816.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.