Home / 489,419,314.80-734,128,972.20-282,511,618.80

Finding the Fourth Proportional to 489,419,314.80, 734,128,972.20 and 282,511,618.80

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Solution

The fourth proportional to 489,419,314.80, 734,128,972.20 and 282,511,618.80 is: 423,767,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,419,314.80 : 734,128,972.20 = 282,511,618.80 : x
  2. Step 2: Convert to fraction form
    489,419,314.80/734,128,972.20 = 282,511,618.80/x
  3. Step 3: Cross multiply
    489,419,314.80x = 734,128,972.20 × 282,511,618.80
  4. Step 4: Simplify right side
    489,419,314.80x = 207,399,964,344,202,208
  5. Step 5: Solve for x
    x = 207,399,964,344,202,208/489,419,314.80
  6. Step 6: Final answer
    x = 423,767,428.20

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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.