Home / 3,978,049,090.44-5,489,713,189.08-2,169,565,331.94

Finding the Fourth Proportional to 3,978,049,090.44, 5,489,713,189.08 and 2,169,565,331.94

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Solution

The fourth proportional to 3,978,049,090.44, 5,489,713,189.08 and 2,169,565,331.94 is: 2,994,003,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,049,090.44 : 5,489,713,189.08 = 2,169,565,331.94 : x
  2. Step 2: Convert to fraction form
    3,978,049,090.44/5,489,713,189.08 = 2,169,565,331.94/x
  3. Step 3: Cross multiply
    3,978,049,090.44x = 5,489,713,189.08 × 2,169,565,331.94
  4. Step 4: Simplify right side
    3,978,049,090.44x = 11,910,291,417,321,746,432
  5. Step 5: Solve for x
    x = 11,910,291,417,321,746,432/3,978,049,090.44
  6. Step 6: Final answer
    x = 2,994,003,127.30

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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.