Home / 680,707,040.04-939,377,660.85-394,654,157.37

Finding the Fourth Proportional to 680,707,040.04, 939,377,660.85 and 394,654,157.37

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Solution

The fourth proportional to 680,707,040.04, 939,377,660.85 and 394,654,157.37 is: 544,623,865.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,707,040.04 : 939,377,660.85 = 394,654,157.37 : x
  2. Step 2: Convert to fraction form
    680,707,040.04/939,377,660.85 = 394,654,157.37/x
  3. Step 3: Cross multiply
    680,707,040.04x = 939,377,660.85 × 394,654,157.37
  4. Step 4: Simplify right side
    680,707,040.04x = 370,729,299,194,958,400
  5. Step 5: Solve for x
    x = 370,729,299,194,958,400/680,707,040.04
  6. Step 6: Final answer
    x = 544,623,865.17

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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.