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Finding the Third Proportional to 78,252,354 and 171,621,252

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Solution

The third proportional to 78,252,354 and 171,621,252 is: 376,395,758.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,252,354 : 171,621,252 = 171,621,252 : x
  2. Step 2: Convert to fraction form
    78,252,354/171,621,252 = 171,621,252/x
  3. Step 3: Cross multiply
    78,252,354x = 171,621,252 × 171,621,252
  4. Step 4: Simplify right side
    78,252,354x = 29,453,854,138,047,504
  5. Step 5: Solve for x
    x = 29,453,854,138,047,504/78,252,354
  6. Step 6: Final answer
    x = 376,395,758.50

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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.