Home / 290,379,625,490.48-400,725,128,994.44-158,394,851,212.30

Finding the Fourth Proportional to 290,379,625,490.48, 400,725,128,994.44 and 158,394,851,212.30

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Solution

The fourth proportional to 290,379,625,490.48, 400,725,128,994.44 and 158,394,851,212.30 is: 218,585,574,235.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,379,625,490.48 : 400,725,128,994.44 = 158,394,851,212.30 : x
  2. Step 2: Convert to fraction form
    290,379,625,490.48/400,725,128,994.44 = 158,394,851,212.30/x
  3. Step 3: Cross multiply
    290,379,625,490.48x = 400,725,128,994.44 × 158,394,851,212.30
  4. Step 4: Simplify right side
    290,379,625,490.48x = 63,472,797,184,104,046,002,176
  5. Step 5: Solve for x
    x = 63,472,797,184,104,046,002,176/290,379,625,490.48
  6. Step 6: Final answer
    x = 218,585,574,235.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.