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Finding the Third Proportional to 21,615,315.75 and 47,068,515

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Solution

The third proportional to 21,615,315.75 and 47,068,515 is: 102,494,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615,315.75 : 47,068,515 = 47,068,515 : x
  2. Step 2: Convert to fraction form
    21,615,315.75/47,068,515 = 47,068,515/x
  3. Step 3: Cross multiply
    21,615,315.75x = 47,068,515 × 47,068,515
  4. Step 4: Simplify right side
    21,615,315.75x = 2,215,445,104,305,225
  5. Step 5: Solve for x
    x = 2,215,445,104,305,225/21,615,315.75
  6. Step 6: Final answer
    x = 102,494,228.16

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.