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Finding the Third Proportional to 8,490,120 and 18,331,800

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Solution

The third proportional to 8,490,120 and 18,331,800 is: 39,581,877.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490,120 : 18,331,800 = 18,331,800 : x
  2. Step 2: Convert to fraction form
    8,490,120/18,331,800 = 18,331,800/x
  3. Step 3: Cross multiply
    8,490,120x = 18,331,800 × 18,331,800
  4. Step 4: Simplify right side
    8,490,120x = 336,054,891,240,000
  5. Step 5: Solve for x
    x = 336,054,891,240,000/8,490,120
  6. Step 6: Final answer
    x = 39,581,877.67

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.