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Finding the Fourth Proportional to 120,155,906.70, 168,600,906.90 and 120,155,906.70

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Solution

The fourth proportional to 120,155,906.70, 168,600,906.90 and 120,155,906.70 is: 168,600,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,155,906.70 : 168,600,906.90 = 120,155,906.70 : x
  2. Step 2: Convert to fraction form
    120,155,906.70/168,600,906.90 = 120,155,906.70/x
  3. Step 3: Cross multiply
    120,155,906.70x = 168,600,906.90 × 120,155,906.70
  4. Step 4: Simplify right side
    120,155,906.70x = 20,258,394,839,011,788
  5. Step 5: Solve for x
    x = 20,258,394,839,011,788/120,155,906.70
  6. Step 6: Final answer
    x = 168,600,906.90

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