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Finding the Third Proportional to 21,018,998 and 45,279,292

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Solution

The third proportional to 21,018,998 and 45,279,292 is: 97,541,009.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,998 : 45,279,292 = 45,279,292 : x
  2. Step 2: Convert to fraction form
    21,018,998/45,279,292 = 45,279,292/x
  3. Step 3: Cross multiply
    21,018,998x = 45,279,292 × 45,279,292
  4. Step 4: Simplify right side
    21,018,998x = 2,050,214,284,021,264
  5. Step 5: Solve for x
    x = 2,050,214,284,021,264/21,018,998
  6. Step 6: Final answer
    x = 97,541,009.52

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.