Home / 3,858,788,821.42-5,325,131,197.96-2,165,009,644.78

Finding the Fourth Proportional to 3,858,788,821.42, 5,325,131,197.96 and 2,165,009,644.78

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Solution

The fourth proportional to 3,858,788,821.42, 5,325,131,197.96 and 2,165,009,644.78 is: 2,987,714,782.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858,788,821.42 : 5,325,131,197.96 = 2,165,009,644.78 : x
  2. Step 2: Convert to fraction form
    3,858,788,821.42/5,325,131,197.96 = 2,165,009,644.78/x
  3. Step 3: Cross multiply
    3,858,788,821.42x = 5,325,131,197.96 × 2,165,009,644.78
  4. Step 4: Simplify right side
    3,858,788,821.42x = 11,528,960,403,302,277,120
  5. Step 5: Solve for x
    x = 11,528,960,403,302,277,120/3,858,788,821.42
  6. Step 6: Final answer
    x = 2,987,714,782.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.