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Finding the Fourth Proportional to 339,533,243.20, 509,299,864.80 and 339,533,243.20

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Solution

The fourth proportional to 339,533,243.20, 509,299,864.80 and 339,533,243.20 is: 509,299,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,533,243.20 : 509,299,864.80 = 339,533,243.20 : x
  2. Step 2: Convert to fraction form
    339,533,243.20/509,299,864.80 = 339,533,243.20/x
  3. Step 3: Cross multiply
    339,533,243.20x = 509,299,864.80 × 339,533,243.20
  4. Step 4: Simplify right side
    339,533,243.20x = 172,924,234,856,865,504
  5. Step 5: Solve for x
    x = 172,924,234,856,865,504/339,533,243.20
  6. Step 6: Final answer
    x = 509,299,864.80

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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.