Home / 230,464,787.82-318,022,180.98-129,987,688.05

Finding the Fourth Proportional to 230,464,787.82, 318,022,180.98 and 129,987,688.05

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Solution

The fourth proportional to 230,464,787.82, 318,022,180.98 and 129,987,688.05 is: 179,372,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,464,787.82 : 318,022,180.98 = 129,987,688.05 : x
  2. Step 2: Convert to fraction form
    230,464,787.82/318,022,180.98 = 129,987,688.05/x
  3. Step 3: Cross multiply
    230,464,787.82x = 318,022,180.98 × 129,987,688.05
  4. Step 4: Simplify right side
    230,464,787.82x = 41,338,968,054,208,888
  5. Step 5: Solve for x
    x = 41,338,968,054,208,888/230,464,787.82
  6. Step 6: Final answer
    x = 179,372,165.46

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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.