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Finding the Fourth Proportional to 320,804,531.20, 481,206,796.80 and 116,339,276.80

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Solution

The fourth proportional to 320,804,531.20, 481,206,796.80 and 116,339,276.80 is: 174,508,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,804,531.20 : 481,206,796.80 = 116,339,276.80 : x
  2. Step 2: Convert to fraction form
    320,804,531.20/481,206,796.80 = 116,339,276.80/x
  3. Step 3: Cross multiply
    320,804,531.20x = 481,206,796.80 × 116,339,276.80
  4. Step 4: Simplify right side
    320,804,531.20x = 55,983,250,730,956,552
  5. Step 5: Solve for x
    x = 55,983,250,730,956,552/320,804,531.20
  6. Step 6: Final answer
    x = 174,508,915.20

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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.