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Finding the Third Proportional to 18,456,509 and 40,386,667

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Solution

The third proportional to 18,456,509 and 40,386,667 is: 88,374,397.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456,509 : 40,386,667 = 40,386,667 : x
  2. Step 2: Convert to fraction form
    18,456,509/40,386,667 = 40,386,667/x
  3. Step 3: Cross multiply
    18,456,509x = 40,386,667 × 40,386,667
  4. Step 4: Simplify right side
    18,456,509x = 1,631,082,871,368,889
  5. Step 5: Solve for x
    x = 1,631,082,871,368,889/18,456,509
  6. Step 6: Final answer
    x = 88,374,397.96

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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.