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Finding the Third Proportional to 7,678,728 and 16,803,792

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Solution

The third proportional to 7,678,728 and 16,803,792 is: 36,772,682.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678,728 : 16,803,792 = 16,803,792 : x
  2. Step 2: Convert to fraction form
    7,678,728/16,803,792 = 16,803,792/x
  3. Step 3: Cross multiply
    7,678,728x = 16,803,792 × 16,803,792
  4. Step 4: Simplify right side
    7,678,728x = 282,367,425,579,264
  5. Step 5: Solve for x
    x = 282,367,425,579,264/7,678,728
  6. Step 6: Final answer
    x = 36,772,682.35

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.