Home / 112,922,843.21-155,833,600.38-63,356,374.49

Finding the Fourth Proportional to 112,922,843.21, 155,833,600.38 and 63,356,374.49

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Solution

The fourth proportional to 112,922,843.21, 155,833,600.38 and 63,356,374.49 is: 87,431,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,922,843.21 : 155,833,600.38 = 63,356,374.49 : x
  2. Step 2: Convert to fraction form
    112,922,843.21/155,833,600.38 = 63,356,374.49/x
  3. Step 3: Cross multiply
    112,922,843.21x = 155,833,600.38 × 63,356,374.49
  4. Step 4: Simplify right side
    112,922,843.21x = 9,873,051,943,021,118
  5. Step 5: Solve for x
    x = 9,873,051,943,021,118/112,922,843.21
  6. Step 6: Final answer
    x = 87,431,839.85

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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.