Home / 204,768,052.30-307,152,078.45-128,240,548.30

Finding the Fourth Proportional to 204,768,052.30, 307,152,078.45 and 128,240,548.30

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Solution

The fourth proportional to 204,768,052.30, 307,152,078.45 and 128,240,548.30 is: 192,360,822.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,768,052.30 : 307,152,078.45 = 128,240,548.30 : x
  2. Step 2: Convert to fraction form
    204,768,052.30/307,152,078.45 = 128,240,548.30/x
  3. Step 3: Cross multiply
    204,768,052.30x = 307,152,078.45 × 128,240,548.30
  4. Step 4: Simplify right side
    204,768,052.30x = 39,389,350,951,912,608
  5. Step 5: Solve for x
    x = 39,389,350,951,912,608/204,768,052.30
  6. Step 6: Final answer
    x = 192,360,822.45

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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.