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Finding the Fourth Proportional to 90,469,353.60, 135,704,030.40 and 90,469,353.60

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Solution

The fourth proportional to 90,469,353.60, 135,704,030.40 and 90,469,353.60 is: 135,704,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,469,353.60 : 135,704,030.40 = 90,469,353.60 : x
  2. Step 2: Convert to fraction form
    90,469,353.60/135,704,030.40 = 90,469,353.60/x
  3. Step 3: Cross multiply
    90,469,353.60x = 135,704,030.40 × 90,469,353.60
  4. Step 4: Simplify right side
    90,469,353.60x = 12,277,055,911,202,750
  5. Step 5: Solve for x
    x = 12,277,055,911,202,750/90,469,353.60
  6. Step 6: Final answer
    x = 135,704,030.40

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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.