Home / 319,441,839-440,829,738.54-172,764,123

Finding the Fourth Proportional to 319,441,839, 440,829,738.54 and 172,764,123

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Solution

The fourth proportional to 319,441,839, 440,829,738.54 and 172,764,123 is: 238,414,490.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,441,839 : 440,829,738.54 = 172,764,123 : x
  2. Step 2: Convert to fraction form
    319,441,839/440,829,738.54 = 172,764,123/x
  3. Step 3: Cross multiply
    319,441,839x = 440,829,738.54 × 172,764,123
  4. Step 4: Simplify right side
    319,441,839x = 76,159,563,171,182,400
  5. Step 5: Solve for x
    x = 76,159,563,171,182,400/319,441,839
  6. Step 6: Final answer
    x = 238,414,490.13

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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.