Home / 391,853,467.74-540,636,026.40-222,279,778.80

Finding the Fourth Proportional to 391,853,467.74, 540,636,026.40 and 222,279,778.80

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Solution

The fourth proportional to 391,853,467.74, 540,636,026.40 and 222,279,778.80 is: 306,677,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,853,467.74 : 540,636,026.40 = 222,279,778.80 : x
  2. Step 2: Convert to fraction form
    391,853,467.74/540,636,026.40 = 222,279,778.80/x
  3. Step 3: Cross multiply
    391,853,467.74x = 540,636,026.40 × 222,279,778.80
  4. Step 4: Simplify right side
    391,853,467.74x = 120,172,456,359,502,960
  5. Step 5: Solve for x
    x = 120,172,456,359,502,960/391,853,467.74
  6. Step 6: Final answer
    x = 306,677,026.63

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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.