Home / 394,803,399.78-544,845,714.30-218,591,389.62

Finding the Fourth Proportional to 394,803,399.78, 544,845,714.30 and 218,591,389.62

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Solution

The fourth proportional to 394,803,399.78, 544,845,714.30 and 218,591,389.62 is: 301,665,542.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,803,399.78 : 544,845,714.30 = 218,591,389.62 : x
  2. Step 2: Convert to fraction form
    394,803,399.78/544,845,714.30 = 218,591,389.62/x
  3. Step 3: Cross multiply
    394,803,399.78x = 544,845,714.30 × 218,591,389.62
  4. Step 4: Simplify right side
    394,803,399.78x = 119,098,581,817,338,496
  5. Step 5: Solve for x
    x = 119,098,581,817,338,496/394,803,399.78
  6. Step 6: Final answer
    x = 301,665,542.61

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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.