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Finding the Third Proportional to 287,540,928 and 629,816,269.50

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Solution

The third proportional to 287,540,928 and 629,816,269.50 is: 1,379,520,251.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,540,928 : 629,816,269.50 = 629,816,269.50 : x
  2. Step 2: Convert to fraction form
    287,540,928/629,816,269.50 = 629,816,269.50/x
  3. Step 3: Cross multiply
    287,540,928x = 629,816,269.50 × 629,816,269.50
  4. Step 4: Simplify right side
    287,540,928x = 396,668,533,326,896,640
  5. Step 5: Solve for x
    x = 396,668,533,326,896,640/287,540,928
  6. Step 6: Final answer
    x = 1,379,520,251.55

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.