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Finding the Fourth Proportional to 217,801,029.60, 305,148,189.60 and 217,801,029.60

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Solution

The fourth proportional to 217,801,029.60, 305,148,189.60 and 217,801,029.60 is: 305,148,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,801,029.60 : 305,148,189.60 = 217,801,029.60 : x
  2. Step 2: Convert to fraction form
    217,801,029.60/305,148,189.60 = 217,801,029.60/x
  3. Step 3: Cross multiply
    217,801,029.60x = 305,148,189.60 × 217,801,029.60
  4. Step 4: Simplify right side
    217,801,029.60x = 66,461,589,875,456,016
  5. Step 5: Solve for x
    x = 66,461,589,875,456,016/217,801,029.60
  6. Step 6: Final answer
    x = 305,148,189.60

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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.