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Finding the Third Proportional to 7,176,980 and 15,674,920

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Solution

The third proportional to 7,176,980 and 15,674,920 is: 34,234,889.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176,980 : 15,674,920 = 15,674,920 : x
  2. Step 2: Convert to fraction form
    7,176,980/15,674,920 = 15,674,920/x
  3. Step 3: Cross multiply
    7,176,980x = 15,674,920 × 15,674,920
  4. Step 4: Simplify right side
    7,176,980x = 245,703,117,006,400
  5. Step 5: Solve for x
    x = 245,703,117,006,400/7,176,980
  6. Step 6: Final answer
    x = 34,234,889.47

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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.