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Finding the Third Proportional to 3,643,985.81 and 7,974,419.63

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Solution

The third proportional to 3,643,985.81 and 7,974,419.63 is: 17,451,047.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643,985.81 : 7,974,419.63 = 7,974,419.63 : x
  2. Step 2: Convert to fraction form
    3,643,985.81/7,974,419.63 = 7,974,419.63/x
  3. Step 3: Cross multiply
    3,643,985.81x = 7,974,419.63 × 7,974,419.63
  4. Step 4: Simplify right side
    3,643,985.81x = 63,591,368,355,585.14
  5. Step 5: Solve for x
    x = 63,591,368,355,585.14/3,643,985.81
  6. Step 6: Final answer
    x = 17,451,047.19

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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.