Home / 680,743,165.38-939,450,626-379,355,560.36

Finding the Fourth Proportional to 680,743,165.38, 939,450,626 and 379,355,560.36

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Solution

The fourth proportional to 680,743,165.38, 939,450,626 and 379,355,560.36 is: 523,524,637.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,743,165.38 : 939,450,626 = 379,355,560.36 : x
  2. Step 2: Convert to fraction form
    680,743,165.38/939,450,626 = 379,355,560.36/x
  3. Step 3: Cross multiply
    680,743,165.38x = 939,450,626 × 379,355,560.36
  4. Step 4: Simplify right side
    680,743,165.38x = 356,385,818,656,782,784
  5. Step 5: Solve for x
    x = 356,385,818,656,782,784/680,743,165.38
  6. Step 6: Final answer
    x = 523,524,637.16

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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.