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Finding the Fourth Proportional to 388,606,762.80, 582,536,896.20 and 224,676,241.20

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Solution

The fourth proportional to 388,606,762.80, 582,536,896.20 and 224,676,241.20 is: 336,798,565.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,606,762.80 : 582,536,896.20 = 224,676,241.20 : x
  2. Step 2: Convert to fraction form
    388,606,762.80/582,536,896.20 = 224,676,241.20/x
  3. Step 3: Cross multiply
    388,606,762.80x = 582,536,896.20 × 224,676,241.20
  4. Step 4: Simplify right side
    388,606,762.80x = 130,882,200,198,530,560
  5. Step 5: Solve for x
    x = 130,882,200,198,530,560/388,606,762.80
  6. Step 6: Final answer
    x = 336,798,565.36

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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.