Home / 1,120,515,845.40-1,680,773,768.10-1,105,210,344.60

Finding the Fourth Proportional to 1,120,515,845.40, 1,680,773,768.10 and 1,105,210,344.60

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Solution

The fourth proportional to 1,120,515,845.40, 1,680,773,768.10 and 1,105,210,344.60 is: 1,657,815,516.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,515,845.40 : 1,680,773,768.10 = 1,105,210,344.60 : x
  2. Step 2: Convert to fraction form
    1,120,515,845.40/1,680,773,768.10 = 1,105,210,344.60/x
  3. Step 3: Cross multiply
    1,120,515,845.40x = 1,680,773,768.10 × 1,105,210,344.60
  4. Step 4: Simplify right side
    1,120,515,845.40x = 1,857,608,555,436,441,344
  5. Step 5: Solve for x
    x = 1,857,608,555,436,441,344/1,120,515,845.40
  6. Step 6: Final answer
    x = 1,657,815,516.90

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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.