Home / 256,609,531.20-384,914,296.80-154,320,916.80

Finding the Fourth Proportional to 256,609,531.20, 384,914,296.80 and 154,320,916.80

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Solution

The fourth proportional to 256,609,531.20, 384,914,296.80 and 154,320,916.80 is: 231,481,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,609,531.20 : 384,914,296.80 = 154,320,916.80 : x
  2. Step 2: Convert to fraction form
    256,609,531.20/384,914,296.80 = 154,320,916.80/x
  3. Step 3: Cross multiply
    256,609,531.20x = 384,914,296.80 × 154,320,916.80
  4. Step 4: Simplify right side
    256,609,531.20x = 59,400,327,171,603,312
  5. Step 5: Solve for x
    x = 59,400,327,171,603,312/256,609,531.20
  6. Step 6: Final answer
    x = 231,481,375.20

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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.