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Finding the Third Proportional to 21,687,408 and 28,913,323.50

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Solution

The third proportional to 21,687,408 and 28,913,323.50 is: 38,546,804.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687,408 : 28,913,323.50 = 28,913,323.50 : x
  2. Step 2: Convert to fraction form
    21,687,408/28,913,323.50 = 28,913,323.50/x
  3. Step 3: Cross multiply
    21,687,408x = 28,913,323.50 × 28,913,323.50
  4. Step 4: Simplify right side
    21,687,408x = 835,980,275,815,652.25
  5. Step 5: Solve for x
    x = 835,980,275,815,652.25/21,687,408
  6. Step 6: Final answer
    x = 38,546,804.48

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.