Home / 725,672,844.40-1,001,399,676.84-428,410,839.92

Finding the Fourth Proportional to 725,672,844.40, 1,001,399,676.84 and 428,410,839.92

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Solution

The fourth proportional to 725,672,844.40, 1,001,399,676.84 and 428,410,839.92 is: 591,189,928.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,672,844.40 : 1,001,399,676.84 = 428,410,839.92 : x
  2. Step 2: Convert to fraction form
    725,672,844.40/1,001,399,676.84 = 428,410,839.92/x
  3. Step 3: Cross multiply
    725,672,844.40x = 1,001,399,676.84 × 428,410,839.92
  4. Step 4: Simplify right side
    725,672,844.40x = 429,010,476,650,641,024
  5. Step 5: Solve for x
    x = 429,010,476,650,641,024/725,672,844.40
  6. Step 6: Final answer
    x = 591,189,928.03

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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.