Home / 623,379,819.21-935,093,644.26-278,336,435.55

Finding the Fourth Proportional to 623,379,819.21, 935,093,644.26 and 278,336,435.55

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Solution

The fourth proportional to 623,379,819.21, 935,093,644.26 and 278,336,435.55 is: 417,515,331.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,379,819.21 : 935,093,644.26 = 278,336,435.55 : x
  2. Step 2: Convert to fraction form
    623,379,819.21/935,093,644.26 = 278,336,435.55/x
  3. Step 3: Cross multiply
    623,379,819.21x = 935,093,644.26 × 278,336,435.55
  4. Step 4: Simplify right side
    623,379,819.21x = 260,270,631,848,788,128
  5. Step 5: Solve for x
    x = 260,270,631,848,788,128/623,379,819.21
  6. Step 6: Final answer
    x = 417,515,331.47

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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.