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Finding the Third Proportional to 4,090,957.50 and 8,900,166.50

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Solution

The third proportional to 4,090,957.50 and 8,900,166.50 is: 19,362,939.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090,957.50 : 8,900,166.50 = 8,900,166.50 : x
  2. Step 2: Convert to fraction form
    4,090,957.50/8,900,166.50 = 8,900,166.50/x
  3. Step 3: Cross multiply
    4,090,957.50x = 8,900,166.50 × 8,900,166.50
  4. Step 4: Simplify right side
    4,090,957.50x = 79,212,963,727,722.25
  5. Step 5: Solve for x
    x = 79,212,963,727,722.25/4,090,957.50
  6. Step 6: Final answer
    x = 19,362,939.78

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.