Home / 557,379,330.12-769,205,638.38-306,504,290.04

Finding the Fourth Proportional to 557,379,330.12, 769,205,638.38 and 306,504,290.04

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Solution

The fourth proportional to 557,379,330.12, 769,205,638.38 and 306,504,290.04 is: 422,988,107.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,379,330.12 : 769,205,638.38 = 306,504,290.04 : x
  2. Step 2: Convert to fraction form
    557,379,330.12/769,205,638.38 = 306,504,290.04/x
  3. Step 3: Cross multiply
    557,379,330.12x = 769,205,638.38 × 306,504,290.04
  4. Step 4: Simplify right side
    557,379,330.12x = 235,764,828,086,426,880
  5. Step 5: Solve for x
    x = 235,764,828,086,426,880/557,379,330.12
  6. Step 6: Final answer
    x = 422,988,107.64

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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.