Home / 396,036,180.80-546,521,461.44-219,813,902.72

Finding the Fourth Proportional to 396,036,180.80, 546,521,461.44 and 219,813,902.72

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Solution

The fourth proportional to 396,036,180.80, 546,521,461.44 and 219,813,902.72 is: 303,338,485.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,036,180.80 : 546,521,461.44 = 219,813,902.72 : x
  2. Step 2: Convert to fraction form
    396,036,180.80/546,521,461.44 = 219,813,902.72/x
  3. Step 3: Cross multiply
    396,036,180.80x = 546,521,461.44 × 219,813,902.72
  4. Step 4: Simplify right side
    396,036,180.80x = 120,133,015,359,364,400
  5. Step 5: Solve for x
    x = 120,133,015,359,364,400/396,036,180.80
  6. Step 6: Final answer
    x = 303,338,485.68

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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.