Home / 440,178,320.70-660,347,197.20-221,277,772.80

Finding the Fourth Proportional to 440,178,320.70, 660,347,197.20 and 221,277,772.80

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Solution

The fourth proportional to 440,178,320.70, 660,347,197.20 and 221,277,772.80 is: 331,956,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,178,320.70 : 660,347,197.20 = 221,277,772.80 : x
  2. Step 2: Convert to fraction form
    440,178,320.70/660,347,197.20 = 221,277,772.80/x
  3. Step 3: Cross multiply
    440,178,320.70x = 660,347,197.20 × 221,277,772.80
  4. Step 4: Simplify right side
    440,178,320.70x = 146,120,157,071,138,400
  5. Step 5: Solve for x
    x = 146,120,157,071,138,400/440,178,320.70
  6. Step 6: Final answer
    x = 331,956,732.53

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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.