Home / 511,976,822.40-767,965,233.60-221,411,455.65

Finding the Fourth Proportional to 511,976,822.40, 767,965,233.60 and 221,411,455.65

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Solution

The fourth proportional to 511,976,822.40, 767,965,233.60 and 221,411,455.65 is: 332,117,183.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,976,822.40 : 767,965,233.60 = 221,411,455.65 : x
  2. Step 2: Convert to fraction form
    511,976,822.40/767,965,233.60 = 221,411,455.65/x
  3. Step 3: Cross multiply
    511,976,822.40x = 767,965,233.60 × 221,411,455.65
  4. Step 4: Simplify right side
    511,976,822.40x = 170,036,300,259,968,288
  5. Step 5: Solve for x
    x = 170,036,300,259,968,288/511,976,822.40
  6. Step 6: Final answer
    x = 332,117,183.48

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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.