Home / 418,743,418.84-628,138,747.96-127,620,039.04

Finding the Fourth Proportional to 418,743,418.84, 628,138,747.96 and 127,620,039.04

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Solution

The fourth proportional to 418,743,418.84, 628,138,747.96 and 127,620,039.04 is: 191,437,257.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,743,418.84 : 628,138,747.96 = 127,620,039.04 : x
  2. Step 2: Convert to fraction form
    418,743,418.84/628,138,747.96 = 127,620,039.04/x
  3. Step 3: Cross multiply
    418,743,418.84x = 628,138,747.96 × 127,620,039.04
  4. Step 4: Simplify right side
    418,743,418.84x = 80,163,091,535,302,512
  5. Step 5: Solve for x
    x = 80,163,091,535,302,512/418,743,418.84
  6. Step 6: Final answer
    x = 191,437,257.11

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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.