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Finding the Third Proportional to 7,702,569 and 11,920,521

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Solution

The third proportional to 7,702,569 and 11,920,521 is: 18,448,237.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,702,569 : 11,920,521 = 11,920,521 : x
  2. Step 2: Convert to fraction form
    7,702,569/11,920,521 = 11,920,521/x
  3. Step 3: Cross multiply
    7,702,569x = 11,920,521 × 11,920,521
  4. Step 4: Simplify right side
    7,702,569x = 142,098,820,911,441
  5. Step 5: Solve for x
    x = 142,098,820,911,441/7,702,569
  6. Step 6: Final answer
    x = 18,448,237.32

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.