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Finding the Third Proportional to 18,487,678.50 and 28,850,727.38

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Solution

The third proportional to 18,487,678.50 and 28,850,727.38 is: 45,022,660.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487,678.50 : 28,850,727.38 = 28,850,727.38 : x
  2. Step 2: Convert to fraction form
    18,487,678.50/28,850,727.38 = 28,850,727.38/x
  3. Step 3: Cross multiply
    18,487,678.50x = 28,850,727.38 × 28,850,727.38
  4. Step 4: Simplify right side
    18,487,678.50x = 832,364,470,066,574.38
  5. Step 5: Solve for x
    x = 832,364,470,066,574.38/18,487,678.50
  6. Step 6: Final answer
    x = 45,022,660.37

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.