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Finding the Fourth Proportional to 287,469,365.60, 431,204,048.40 and 287,469,365.60

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Solution

The fourth proportional to 287,469,365.60, 431,204,048.40 and 287,469,365.60 is: 431,204,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,469,365.60 : 431,204,048.40 = 287,469,365.60 : x
  2. Step 2: Convert to fraction form
    287,469,365.60/431,204,048.40 = 287,469,365.60/x
  3. Step 3: Cross multiply
    287,469,365.60x = 431,204,048.40 × 287,469,365.60
  4. Step 4: Simplify right side
    287,469,365.60x = 123,957,954,237,699,696
  5. Step 5: Solve for x
    x = 123,957,954,237,699,696/287,469,365.60
  6. Step 6: Final answer
    x = 431,204,048.40

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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.