Home / 787,253,118,861.55-1,180,879,681,125.60-221,290,805,522.80

Finding the Fourth Proportional to 787,253,118,861.55, 1,180,879,681,125.60 and 221,290,805,522.80

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Solution

The fourth proportional to 787,253,118,861.55, 1,180,879,681,125.60 and 221,290,805,522.80 is: 331,936,209,080.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,253,118,861.55 : 1,180,879,681,125.60 = 221,290,805,522.80 : x
  2. Step 2: Convert to fraction form
    787,253,118,861.55/1,180,879,681,125.60 = 221,290,805,522.80/x
  3. Step 3: Cross multiply
    787,253,118,861.55x = 1,180,879,681,125.60 × 221,290,805,522.80
  4. Step 4: Simplify right side
    787,253,118,861.55x = 261,317,815,861,791,229,476,864
  5. Step 5: Solve for x
    x = 261,317,815,861,791,229,476,864/787,253,118,861.55
  6. Step 6: Final answer
    x = 331,936,209,080.61

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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.