Home / 690,557,109.21-1,036,244,195.42-254,164,295.61

Finding the Fourth Proportional to 690,557,109.21, 1,036,244,195.42 and 254,164,295.61

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Solution

The fourth proportional to 690,557,109.21, 1,036,244,195.42 and 254,164,295.61 is: 381,396,806.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,557,109.21 : 1,036,244,195.42 = 254,164,295.61 : x
  2. Step 2: Convert to fraction form
    690,557,109.21/1,036,244,195.42 = 254,164,295.61/x
  3. Step 3: Cross multiply
    690,557,109.21x = 1,036,244,195.42 × 254,164,295.61
  4. Step 4: Simplify right side
    690,557,109.21x = 263,376,276,007,604,672
  5. Step 5: Solve for x
    x = 263,376,276,007,604,672/690,557,109.21
  6. Step 6: Final answer
    x = 381,396,806.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.