Home / 258,749,028.36-388,131,421.68-101,175,750.90

Finding the Fourth Proportional to 258,749,028.36, 388,131,421.68 and 101,175,750.90

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Solution

The fourth proportional to 258,749,028.36, 388,131,421.68 and 101,175,750.90 is: 151,766,707.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,749,028.36 : 388,131,421.68 = 101,175,750.90 : x
  2. Step 2: Convert to fraction form
    258,749,028.36/388,131,421.68 = 101,175,750.90/x
  3. Step 3: Cross multiply
    258,749,028.36x = 388,131,421.68 × 101,175,750.90
  4. Step 4: Simplify right side
    258,749,028.36x = 39,269,488,036,358,544
  5. Step 5: Solve for x
    x = 39,269,488,036,358,544/258,749,028.36
  6. Step 6: Final answer
    x = 151,766,707.24

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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.