Home / 203,145,984.50-280,365,390.86-120,639,769.25

Finding the Fourth Proportional to 203,145,984.50, 280,365,390.86 and 120,639,769.25

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Solution

The fourth proportional to 203,145,984.50, 280,365,390.86 and 120,639,769.25 is: 166,497,093.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,145,984.50 : 280,365,390.86 = 120,639,769.25 : x
  2. Step 2: Convert to fraction form
    203,145,984.50/280,365,390.86 = 120,639,769.25/x
  3. Step 3: Cross multiply
    203,145,984.50x = 280,365,390.86 × 120,639,769.25
  4. Step 4: Simplify right side
    203,145,984.50x = 33,823,216,057,031,436
  5. Step 5: Solve for x
    x = 33,823,216,057,031,436/203,145,984.50
  6. Step 6: Final answer
    x = 166,497,093.91

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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.