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Finding the Third Proportional to 18,576,430 and 39,409,844

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Solution

The third proportional to 18,576,430 and 39,409,844 is: 83,607,873.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576,430 : 39,409,844 = 39,409,844 : x
  2. Step 2: Convert to fraction form
    18,576,430/39,409,844 = 39,409,844/x
  3. Step 3: Cross multiply
    18,576,430x = 39,409,844 × 39,409,844
  4. Step 4: Simplify right side
    18,576,430x = 1,553,135,804,104,336
  5. Step 5: Solve for x
    x = 1,553,135,804,104,336/18,576,430
  6. Step 6: Final answer
    x = 83,607,873.21

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.