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Finding the Third Proportional to 21,221,772 and 43,223,938.50

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Solution

The third proportional to 21,221,772 and 43,223,938.50 is: 88,037,363.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,221,772 : 43,223,938.50 = 43,223,938.50 : x
  2. Step 2: Convert to fraction form
    21,221,772/43,223,938.50 = 43,223,938.50/x
  3. Step 3: Cross multiply
    21,221,772x = 43,223,938.50 × 43,223,938.50
  4. Step 4: Simplify right side
    21,221,772x = 1,868,308,859,451,782.25
  5. Step 5: Solve for x
    x = 1,868,308,859,451,782.25/21,221,772
  6. Step 6: Final answer
    x = 88,037,363.68

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.