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Finding the Third Proportional to 21,255,980 and 29,826,354

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Solution

The third proportional to 21,255,980 and 29,826,354 is: 41,852,287.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,255,980 : 29,826,354 = 29,826,354 : x
  2. Step 2: Convert to fraction form
    21,255,980/29,826,354 = 29,826,354/x
  3. Step 3: Cross multiply
    21,255,980x = 29,826,354 × 29,826,354
  4. Step 4: Simplify right side
    21,255,980x = 889,611,392,933,316
  5. Step 5: Solve for x
    x = 889,611,392,933,316/21,255,980
  6. Step 6: Final answer
    x = 41,852,287.82

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.