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Finding the Fourth Proportional to 3,800,736,421.20, 5,328,286,930.80 and 3,800,736,421.20

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Solution

The fourth proportional to 3,800,736,421.20, 5,328,286,930.80 and 3,800,736,421.20 is: 5,328,286,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800,736,421.20 : 5,328,286,930.80 = 3,800,736,421.20 : x
  2. Step 2: Convert to fraction form
    3,800,736,421.20/5,328,286,930.80 = 3,800,736,421.20/x
  3. Step 3: Cross multiply
    3,800,736,421.20x = 5,328,286,930.80 × 3,800,736,421.20
  4. Step 4: Simplify right side
    3,800,736,421.20x = 20,251,414,200,495,521,792
  5. Step 5: Solve for x
    x = 20,251,414,200,495,521,792/3,800,736,421.20
  6. Step 6: Final answer
    x = 5,328,286,930.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.