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Finding the Third Proportional to 4,272,578 and 9,355,581

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Solution

The third proportional to 4,272,578 and 9,355,581 is: 20,485,733.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272,578 : 9,355,581 = 9,355,581 : x
  2. Step 2: Convert to fraction form
    4,272,578/9,355,581 = 9,355,581/x
  3. Step 3: Cross multiply
    4,272,578x = 9,355,581 × 9,355,581
  4. Step 4: Simplify right side
    4,272,578x = 87,526,895,847,561
  5. Step 5: Solve for x
    x = 87,526,895,847,561/4,272,578
  6. Step 6: Final answer
    x = 20,485,733.87

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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.