Home / 680,707,044.04-939,377,666.38-394,654,161.38

Finding the Fourth Proportional to 680,707,044.04, 939,377,666.38 and 394,654,161.38

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Solution

The fourth proportional to 680,707,044.04, 939,377,666.38 and 394,654,161.38 is: 544,623,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,707,044.04 : 939,377,666.38 = 394,654,161.38 : x
  2. Step 2: Convert to fraction form
    680,707,044.04/939,377,666.38 = 394,654,161.38/x
  3. Step 3: Cross multiply
    680,707,044.04x = 939,377,666.38 × 394,654,161.38
  4. Step 4: Simplify right side
    680,707,044.04x = 370,729,305,144,300,288
  5. Step 5: Solve for x
    x = 370,729,305,144,300,288/680,707,044.04
  6. Step 6: Final answer
    x = 544,623,870.71

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1.5x scale

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.