Home / 628,122,531.69-941,747,489.15-278,177,906.07

Finding the Fourth Proportional to 628,122,531.69, 941,747,489.15 and 278,177,906.07

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Solution

The fourth proportional to 628,122,531.69, 941,747,489.15 and 278,177,906.07 is: 417,073,630.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,122,531.69 : 941,747,489.15 = 278,177,906.07 : x
  2. Step 2: Convert to fraction form
    628,122,531.69/941,747,489.15 = 278,177,906.07/x
  3. Step 3: Cross multiply
    628,122,531.69x = 941,747,489.15 × 278,177,906.07
  4. Step 4: Simplify right side
    628,122,531.69x = 261,973,344,577,036,128
  5. Step 5: Solve for x
    x = 261,973,344,577,036,128/628,122,531.69
  6. Step 6: Final answer
    x = 417,073,630.32

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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.