Home / 172,715,920.23-259,145,488.67-75,621,512.55

Finding the Fourth Proportional to 172,715,920.23, 259,145,488.67 and 75,621,512.55

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Solution

The fourth proportional to 172,715,920.23, 259,145,488.67 and 75,621,512.55 is: 113,463,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,715,920.23 : 259,145,488.67 = 75,621,512.55 : x
  2. Step 2: Convert to fraction form
    172,715,920.23/259,145,488.67 = 75,621,512.55/x
  3. Step 3: Cross multiply
    172,715,920.23x = 259,145,488.67 × 75,621,512.55
  4. Step 4: Simplify right side
    172,715,920.23x = 19,596,973,823,356,180
  5. Step 5: Solve for x
    x = 19,596,973,823,356,180/172,715,920.23
  6. Step 6: Final answer
    x = 113,463,621.64

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Why These Related Problems?

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