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Finding the Fourth Proportional to 440,659,518.71, 608,982,640.69 and 361,149,172.01

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Solution

The fourth proportional to 440,659,518.71, 608,982,640.69 and 361,149,172.01 is: 499,100,931.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,659,518.71 : 608,982,640.69 = 361,149,172.01 : x
  2. Step 2: Convert to fraction form
    440,659,518.71/608,982,640.69 = 361,149,172.01/x
  3. Step 3: Cross multiply
    440,659,518.71x = 608,982,640.69 × 361,149,172.01
  4. Step 4: Simplify right side
    440,659,518.71x = 219,933,576,456,540,352
  5. Step 5: Solve for x
    x = 219,933,576,456,540,352/440,659,518.71
  6. Step 6: Final answer
    x = 499,100,931.94

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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.