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Finding the Third Proportional to 7,189,680 and 15,639,072

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Solution

The third proportional to 7,189,680 and 15,639,072 is: 34,018,283.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189,680 : 15,639,072 = 15,639,072 : x
  2. Step 2: Convert to fraction form
    7,189,680/15,639,072 = 15,639,072/x
  3. Step 3: Cross multiply
    7,189,680x = 15,639,072 × 15,639,072
  4. Step 4: Simplify right side
    7,189,680x = 244,580,573,021,184
  5. Step 5: Solve for x
    x = 244,580,573,021,184/7,189,680
  6. Step 6: Final answer
    x = 34,018,283.57

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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.