Home / 623,379,820.21-935,093,645.76-278,336,436.55

Finding the Fourth Proportional to 623,379,820.21, 935,093,645.76 and 278,336,436.55

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Solution

The fourth proportional to 623,379,820.21, 935,093,645.76 and 278,336,436.55 is: 417,515,332.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,379,820.21 : 935,093,645.76 = 278,336,436.55 : x
  2. Step 2: Convert to fraction form
    623,379,820.21/935,093,645.76 = 278,336,436.55/x
  3. Step 3: Cross multiply
    623,379,820.21x = 935,093,645.76 × 278,336,436.55
  4. Step 4: Simplify right side
    623,379,820.21x = 260,270,633,201,386,432
  5. Step 5: Solve for x
    x = 260,270,633,201,386,432/623,379,820.21
  6. Step 6: Final answer
    x = 417,515,332.97

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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.