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Finding the Fourth Proportional to 12,398,103,693.68, 18,597,155,540.51 and 12,398,103,693.68

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Solution

The fourth proportional to 12,398,103,693.68, 18,597,155,540.51 and 12,398,103,693.68 is: 18,597,155,540.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398,103,693.68 : 18,597,155,540.51 = 12,398,103,693.68 : x
  2. Step 2: Convert to fraction form
    12,398,103,693.68/18,597,155,540.51 = 12,398,103,693.68/x
  3. Step 3: Cross multiply
    12,398,103,693.68x = 18,597,155,540.51 × 12,398,103,693.68
  4. Step 4: Simplify right side
    12,398,103,693.68x = 230,569,462,798,670,331,904
  5. Step 5: Solve for x
    x = 230,569,462,798,670,331,904/12,398,103,693.68
  6. Step 6: Final answer
    x = 18,597,155,540.51

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Double scale
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Similar ratio
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1.5x scale

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.