Home / 300,847,911.39-415,017,322.47-196,487,070.75

Finding the Fourth Proportional to 300,847,911.39, 415,017,322.47 and 196,487,070.75

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Solution

The fourth proportional to 300,847,911.39, 415,017,322.47 and 196,487,070.75 is: 271,052,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,847,911.39 : 415,017,322.47 = 196,487,070.75 : x
  2. Step 2: Convert to fraction form
    300,847,911.39/415,017,322.47 = 196,487,070.75/x
  3. Step 3: Cross multiply
    300,847,911.39x = 415,017,322.47 × 196,487,070.75
  4. Step 4: Simplify right side
    300,847,911.39x = 81,545,538,002,638,464
  5. Step 5: Solve for x
    x = 81,545,538,002,638,464/300,847,911.39
  6. Step 6: Final answer
    x = 271,052,365.38

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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.