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Finding the Third Proportional to 7,970,518 and 12,688,858

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Solution

The third proportional to 7,970,518 and 12,688,858 is: 20,200,332.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970,518 : 12,688,858 = 12,688,858 : x
  2. Step 2: Convert to fraction form
    7,970,518/12,688,858 = 12,688,858/x
  3. Step 3: Cross multiply
    7,970,518x = 12,688,858 × 12,688,858
  4. Step 4: Simplify right side
    7,970,518x = 161,007,117,344,164
  5. Step 5: Solve for x
    x = 161,007,117,344,164/7,970,518
  6. Step 6: Final answer
    x = 20,200,332.95

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.