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Finding the Fourth Proportional to 329,904,428.40, 494,856,642.60 and 327,888,889.20

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Solution

The fourth proportional to 329,904,428.40, 494,856,642.60 and 327,888,889.20 is: 491,833,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,904,428.40 : 494,856,642.60 = 327,888,889.20 : x
  2. Step 2: Convert to fraction form
    329,904,428.40/494,856,642.60 = 327,888,889.20/x
  3. Step 3: Cross multiply
    329,904,428.40x = 494,856,642.60 × 327,888,889.20
  4. Step 4: Simplify right side
    329,904,428.40x = 162,257,994,855,355,392
  5. Step 5: Solve for x
    x = 162,257,994,855,355,392/329,904,428.40
  6. Step 6: Final answer
    x = 491,833,333.80

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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.