Home / 644,533,946.12-964,873,904.87-394,752,721.29

Finding the Fourth Proportional to 644,533,946.12, 964,873,904.87 and 394,752,721.29

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Solution

The fourth proportional to 644,533,946.12, 964,873,904.87 and 394,752,721.29 is: 590,948,858.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,533,946.12 : 964,873,904.87 = 394,752,721.29 : x
  2. Step 2: Convert to fraction form
    644,533,946.12/964,873,904.87 = 394,752,721.29/x
  3. Step 3: Cross multiply
    644,533,946.12x = 964,873,904.87 × 394,752,721.29
  4. Step 4: Simplify right side
    644,533,946.12x = 380,886,599,647,167,360
  5. Step 5: Solve for x
    x = 380,886,599,647,167,360/644,533,946.12
  6. Step 6: Final answer
    x = 590,948,858.39

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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.