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Finding the Fourth Proportional to 1,328,601,201.15, 1,992,901,801.73 and 1,328,601,201.15

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Solution

The fourth proportional to 1,328,601,201.15, 1,992,901,801.73 and 1,328,601,201.15 is: 1,992,901,801.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,601,201.15 : 1,992,901,801.73 = 1,328,601,201.15 : x
  2. Step 2: Convert to fraction form
    1,328,601,201.15/1,992,901,801.73 = 1,328,601,201.15/x
  3. Step 3: Cross multiply
    1,328,601,201.15x = 1,992,901,801.73 × 1,328,601,201.15
  4. Step 4: Simplify right side
    1,328,601,201.15x = 2,647,771,727,545,833,984
  5. Step 5: Solve for x
    x = 2,647,771,727,545,833,984/1,328,601,201.15
  6. Step 6: Final answer
    x = 1,992,901,801.73

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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.