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Finding the Third Proportional to 78,925,060 and 172,192,664

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Solution

The third proportional to 78,925,060 and 172,192,664 is: 375,676,794.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,925,060 : 172,192,664 = 172,192,664 : x
  2. Step 2: Convert to fraction form
    78,925,060/172,192,664 = 172,192,664/x
  3. Step 3: Cross multiply
    78,925,060x = 172,192,664 × 172,192,664
  4. Step 4: Simplify right side
    78,925,060x = 29,650,313,535,416,896
  5. Step 5: Solve for x
    x = 29,650,313,535,416,896/78,925,060
  6. Step 6: Final answer
    x = 375,676,794.36

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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.