Home / 221,243,114.85-305,315,449.65-122,123,836.46

Finding the Fourth Proportional to 221,243,114.85, 305,315,449.65 and 122,123,836.46

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Solution

The fourth proportional to 221,243,114.85, 305,315,449.65 and 122,123,836.46 is: 168,530,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,243,114.85 : 305,315,449.65 = 122,123,836.46 : x
  2. Step 2: Convert to fraction form
    221,243,114.85/305,315,449.65 = 122,123,836.46/x
  3. Step 3: Cross multiply
    221,243,114.85x = 305,315,449.65 × 122,123,836.46
  4. Step 4: Simplify right side
    221,243,114.85x = 37,286,294,040,241,384
  5. Step 5: Solve for x
    x = 37,286,294,040,241,384/221,243,114.85
  6. Step 6: Final answer
    x = 168,530,867.35

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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.