Home / 644,533,948.86-964,873,908.96-394,752,724.04

Finding the Fourth Proportional to 644,533,948.86, 964,873,908.96 and 394,752,724.04

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Solution

The fourth proportional to 644,533,948.86, 964,873,908.96 and 394,752,724.04 is: 590,948,862.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,533,948.86 : 964,873,908.96 = 394,752,724.04 : x
  2. Step 2: Convert to fraction form
    644,533,948.86/964,873,908.96 = 394,752,724.04/x
  3. Step 3: Cross multiply
    644,533,948.86x = 964,873,908.96 × 394,752,724.04
  4. Step 4: Simplify right side
    644,533,948.86x = 380,886,603,917,083,008
  5. Step 5: Solve for x
    x = 380,886,603,917,083,008/644,533,948.86
  6. Step 6: Final answer
    x = 590,948,862.49

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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.