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Finding the Third Proportional to 84,985,400 and 187,834,960

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Solution

The third proportional to 84,985,400 and 187,834,960 is: 415,153,334.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,985,400 : 187,834,960 = 187,834,960 : x
  2. Step 2: Convert to fraction form
    84,985,400/187,834,960 = 187,834,960/x
  3. Step 3: Cross multiply
    84,985,400x = 187,834,960 × 187,834,960
  4. Step 4: Simplify right side
    84,985,400x = 35,281,972,198,201,600
  5. Step 5: Solve for x
    x = 35,281,972,198,201,600/84,985,400
  6. Step 6: Final answer
    x = 415,153,334.55

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.