Home / 256,607,999.80-384,837,350.10-141,647,615.80

Finding the Fourth Proportional to 256,607,999.80, 384,837,350.10 and 141,647,615.80

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Solution

The fourth proportional to 256,607,999.80, 384,837,350.10 and 141,647,615.80 is: 212,430,217.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,607,999.80 : 384,837,350.10 = 141,647,615.80 : x
  2. Step 2: Convert to fraction form
    256,607,999.80/384,837,350.10 = 141,647,615.80/x
  3. Step 3: Cross multiply
    256,607,999.80x = 384,837,350.10 × 141,647,615.80
  4. Step 4: Simplify right side
    256,607,999.80x = 54,511,293,112,454,896
  5. Step 5: Solve for x
    x = 54,511,293,112,454,896/256,607,999.80
  6. Step 6: Final answer
    x = 212,430,217.12

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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.