Home / 254,196,313.80-381,294,470.70-72,419,872.20

Finding the Fourth Proportional to 254,196,313.80, 381,294,470.70 and 72,419,872.20

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Solution

The fourth proportional to 254,196,313.80, 381,294,470.70 and 72,419,872.20 is: 108,629,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,196,313.80 : 381,294,470.70 = 72,419,872.20 : x
  2. Step 2: Convert to fraction form
    254,196,313.80/381,294,470.70 = 72,419,872.20/x
  3. Step 3: Cross multiply
    254,196,313.80x = 381,294,470.70 × 72,419,872.20
  4. Step 4: Simplify right side
    254,196,313.80x = 27,613,296,838,660,644
  5. Step 5: Solve for x
    x = 27,613,296,838,660,644/254,196,313.80
  6. Step 6: Final answer
    x = 108,629,808.30

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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.