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Finding the Fourth Proportional to 299,560,000.40, 449,340,000.60 and 266,116,979.60

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Solution

The fourth proportional to 299,560,000.40, 449,340,000.60 and 266,116,979.60 is: 399,175,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,560,000.40 : 449,340,000.60 = 266,116,979.60 : x
  2. Step 2: Convert to fraction form
    299,560,000.40/449,340,000.60 = 266,116,979.60/x
  3. Step 3: Cross multiply
    299,560,000.40x = 449,340,000.60 × 266,116,979.60
  4. Step 4: Simplify right side
    299,560,000.40x = 119,577,003,773,134,192
  5. Step 5: Solve for x
    x = 119,577,003,773,134,192/299,560,000.40
  6. Step 6: Final answer
    x = 399,175,469.40

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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.