Home / 525,120,342.75-787,816,704.07-279,274,817.61

Finding the Fourth Proportional to 525,120,342.75, 787,816,704.07 and 279,274,817.61

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Solution

The fourth proportional to 525,120,342.75, 787,816,704.07 and 279,274,817.61 is: 418,984,656.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,120,342.75 : 787,816,704.07 = 279,274,817.61 : x
  2. Step 2: Convert to fraction form
    525,120,342.75/787,816,704.07 = 279,274,817.61/x
  3. Step 3: Cross multiply
    525,120,342.75x = 787,816,704.07 × 279,274,817.61
  4. Step 4: Simplify right side
    525,120,342.75x = 220,017,366,339,260,608
  5. Step 5: Solve for x
    x = 220,017,366,339,260,608/525,120,342.75
  6. Step 6: Final answer
    x = 418,984,656.33

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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.