Home / 287,011,521.33-395,864,418.54-216,450,101.73

Finding the Fourth Proportional to 287,011,521.33, 395,864,418.54 and 216,450,101.73

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Solution

The fourth proportional to 287,011,521.33, 395,864,418.54 and 216,450,101.73 is: 298,541,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,011,521.33 : 395,864,418.54 = 216,450,101.73 : x
  2. Step 2: Convert to fraction form
    287,011,521.33/395,864,418.54 = 216,450,101.73/x
  3. Step 3: Cross multiply
    287,011,521.33x = 395,864,418.54 × 216,450,101.73
  4. Step 4: Simplify right side
    287,011,521.33x = 85,684,893,664,270,304
  5. Step 5: Solve for x
    x = 85,684,893,664,270,304/287,011,521.33
  6. Step 6: Final answer
    x = 298,541,651.80

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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.