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Finding the Fourth Proportional to 3,845,842,214.40, 5,396,423,500.80 and 3,845,842,214.40

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Solution

The fourth proportional to 3,845,842,214.40, 5,396,423,500.80 and 3,845,842,214.40 is: 5,396,423,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845,842,214.40 : 5,396,423,500.80 = 3,845,842,214.40 : x
  2. Step 2: Convert to fraction form
    3,845,842,214.40/5,396,423,500.80 = 3,845,842,214.40/x
  3. Step 3: Cross multiply
    3,845,842,214.40x = 5,396,423,500.80 × 3,845,842,214.40
  4. Step 4: Simplify right side
    3,845,842,214.40x = 20,753,793,306,156,871,680
  5. Step 5: Solve for x
    x = 20,753,793,306,156,871,680/3,845,842,214.40
  6. Step 6: Final answer
    x = 5,396,423,500.80

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Double scale
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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.