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Finding the Third Proportional to 168,271,574 and 258,485,739

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Solution

The third proportional to 168,271,574 and 258,485,739 is: 397,065,741.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,271,574 : 258,485,739 = 258,485,739 : x
  2. Step 2: Convert to fraction form
    168,271,574/258,485,739 = 258,485,739/x
  3. Step 3: Cross multiply
    168,271,574x = 258,485,739 × 258,485,739
  4. Step 4: Simplify right side
    168,271,574x = 66,814,877,266,376,120
  5. Step 5: Solve for x
    x = 66,814,877,266,376,120/168,271,574
  6. Step 6: Final answer
    x = 397,065,741.28

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.