Home / 426,630,424.43-639,945,638.17-119,922,537.31

Finding the Fourth Proportional to 426,630,424.43, 639,945,638.17 and 119,922,537.31

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Solution

The fourth proportional to 426,630,424.43, 639,945,638.17 and 119,922,537.31 is: 179,883,806.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,630,424.43 : 639,945,638.17 = 119,922,537.31 : x
  2. Step 2: Convert to fraction form
    426,630,424.43/639,945,638.17 = 119,922,537.31/x
  3. Step 3: Cross multiply
    426,630,424.43x = 639,945,638.17 × 119,922,537.31
  4. Step 4: Simplify right side
    426,630,424.43x = 76,743,904,667,913,920
  5. Step 5: Solve for x
    x = 76,743,904,667,913,920/426,630,424.43
  6. Step 6: Final answer
    x = 179,883,806.39

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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.