Home / 545,145,999.40-817,718,999.10-327,467,765.80

Finding the Fourth Proportional to 545,145,999.40, 817,718,999.10 and 327,467,765.80

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Solution

The fourth proportional to 545,145,999.40, 817,718,999.10 and 327,467,765.80 is: 491,201,648.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,145,999.40 : 817,718,999.10 = 327,467,765.80 : x
  2. Step 2: Convert to fraction form
    545,145,999.40/817,718,999.10 = 327,467,765.80/x
  3. Step 3: Cross multiply
    545,145,999.40x = 817,718,999.10 × 327,467,765.80
  4. Step 4: Simplify right side
    545,145,999.40x = 267,776,613,687,489,216
  5. Step 5: Solve for x
    x = 267,776,613,687,489,216/545,145,999.40
  6. Step 6: Final answer
    x = 491,201,648.70

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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.