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Finding the Third Proportional to 8,378,468 and 18,249,880

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Solution

The third proportional to 8,378,468 and 18,249,880 is: 39,751,672.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378,468 : 18,249,880 = 18,249,880 : x
  2. Step 2: Convert to fraction form
    8,378,468/18,249,880 = 18,249,880/x
  3. Step 3: Cross multiply
    8,378,468x = 18,249,880 × 18,249,880
  4. Step 4: Simplify right side
    8,378,468x = 333,058,120,014,400
  5. Step 5: Solve for x
    x = 333,058,120,014,400/8,378,468
  6. Step 6: Final answer
    x = 39,751,672.98

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.