Home / 644,339,840.10-889,160,308.92-376,440,515.04

Finding the Fourth Proportional to 644,339,840.10, 889,160,308.92 and 376,440,515.04

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Solution

The fourth proportional to 644,339,840.10, 889,160,308.92 and 376,440,515.04 is: 519,471,160.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,339,840.10 : 889,160,308.92 = 376,440,515.04 : x
  2. Step 2: Convert to fraction form
    644,339,840.10/889,160,308.92 = 376,440,515.04/x
  3. Step 3: Cross multiply
    644,339,840.10x = 889,160,308.92 × 376,440,515.04
  4. Step 4: Simplify right side
    644,339,840.10x = 334,715,964,642,970,304
  5. Step 5: Solve for x
    x = 334,715,964,642,970,304/644,339,840.10
  6. Step 6: Final answer
    x = 519,471,160.73

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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.