Home / 386,304,512.60-579,456,768.90-263,860,506.20

Finding the Fourth Proportional to 386,304,512.60, 579,456,768.90 and 263,860,506.20

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Solution

The fourth proportional to 386,304,512.60, 579,456,768.90 and 263,860,506.20 is: 395,790,759.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,304,512.60 : 579,456,768.90 = 263,860,506.20 : x
  2. Step 2: Convert to fraction form
    386,304,512.60/579,456,768.90 = 263,860,506.20/x
  3. Step 3: Cross multiply
    386,304,512.60x = 579,456,768.90 × 263,860,506.20
  4. Step 4: Simplify right side
    386,304,512.60x = 152,895,756,362,970,400
  5. Step 5: Solve for x
    x = 152,895,756,362,970,400/386,304,512.60
  6. Step 6: Final answer
    x = 395,790,759.30

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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.