Home / 481,071,297.78-663,878,391-261,054,723.78

Finding the Fourth Proportional to 481,071,297.78, 663,878,391 and 261,054,723.78

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Solution

The fourth proportional to 481,071,297.78, 663,878,391 and 261,054,723.78 is: 360,255,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,071,297.78 : 663,878,391 = 261,054,723.78 : x
  2. Step 2: Convert to fraction form
    481,071,297.78/663,878,391 = 261,054,723.78/x
  3. Step 3: Cross multiply
    481,071,297.78x = 663,878,391 × 261,054,723.78
  4. Step 4: Simplify right side
    481,071,297.78x = 173,308,589,986,015,840
  5. Step 5: Solve for x
    x = 173,308,589,986,015,840/481,071,297.78
  6. Step 6: Final answer
    x = 360,255,518.85

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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.