Home / 392,472,860.82-541,588,144.29-216,250,994.64

Finding the Fourth Proportional to 392,472,860.82, 541,588,144.29 and 216,250,994.64

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Solution

The fourth proportional to 392,472,860.82, 541,588,144.29 and 216,250,994.64 is: 298,412,926.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,472,860.82 : 541,588,144.29 = 216,250,994.64 : x
  2. Step 2: Convert to fraction form
    392,472,860.82/541,588,144.29 = 216,250,994.64/x
  3. Step 3: Cross multiply
    392,472,860.82x = 541,588,144.29 × 216,250,994.64
  4. Step 4: Simplify right side
    392,472,860.82x = 117,118,974,887,944,320
  5. Step 5: Solve for x
    x = 117,118,974,887,944,320/392,472,860.82
  6. Step 6: Final answer
    x = 298,412,926.29

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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.