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Finding the Third Proportional to 15,390,513 and 21,646,467

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Solution

The third proportional to 15,390,513 and 21,646,467 is: 30,445,348.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,390,513 : 21,646,467 = 21,646,467 : x
  2. Step 2: Convert to fraction form
    15,390,513/21,646,467 = 21,646,467/x
  3. Step 3: Cross multiply
    15,390,513x = 21,646,467 × 21,646,467
  4. Step 4: Simplify right side
    15,390,513x = 468,569,533,582,089
  5. Step 5: Solve for x
    x = 468,569,533,582,089/15,390,513
  6. Step 6: Final answer
    x = 30,445,348.61

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.