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Finding the Third Proportional to 20,640,641.63 and 28,872,278.44

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Solution

The third proportional to 20,640,641.63 and 28,872,278.44 is: 40,386,751.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,640,641.63 : 28,872,278.44 = 28,872,278.44 : x
  2. Step 2: Convert to fraction form
    20,640,641.63/28,872,278.44 = 28,872,278.44/x
  3. Step 3: Cross multiply
    20,640,641.63x = 28,872,278.44 × 28,872,278.44
  4. Step 4: Simplify right side
    20,640,641.63x = 833,608,462,172,527.50
  5. Step 5: Solve for x
    x = 833,608,462,172,527.50/20,640,641.63
  6. Step 6: Final answer
    x = 40,386,751.41

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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.