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Finding the Fourth Proportional to 266,987,522.40, 400,481,283.60 and 85,248,002.40

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Solution

The fourth proportional to 266,987,522.40, 400,481,283.60 and 85,248,002.40 is: 127,872,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,987,522.40 : 400,481,283.60 = 85,248,002.40 : x
  2. Step 2: Convert to fraction form
    266,987,522.40/400,481,283.60 = 85,248,002.40/x
  3. Step 3: Cross multiply
    266,987,522.40x = 400,481,283.60 × 85,248,002.40
  4. Step 4: Simplify right side
    266,987,522.40x = 34,140,229,425,487,884
  5. Step 5: Solve for x
    x = 34,140,229,425,487,884/266,987,522.40
  6. Step 6: Final answer
    x = 127,872,003.60

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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.