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Finding the Third Proportional to 172,136,060 and 258,708,582

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Solution

The third proportional to 172,136,060 and 258,708,582 is: 388,821,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,136,060 : 258,708,582 = 258,708,582 : x
  2. Step 2: Convert to fraction form
    172,136,060/258,708,582 = 258,708,582/x
  3. Step 3: Cross multiply
    172,136,060x = 258,708,582 × 258,708,582
  4. Step 4: Simplify right side
    172,136,060x = 66,930,130,400,450,720
  5. Step 5: Solve for x
    x = 66,930,130,400,450,720/172,136,060
  6. Step 6: Final answer
    x = 388,821,089.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.