Home / 256,729,622.22-385,110,542.16-72,511,522.74

Finding the Fourth Proportional to 256,729,622.22, 385,110,542.16 and 72,511,522.74

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Solution

The fourth proportional to 256,729,622.22, 385,110,542.16 and 72,511,522.74 is: 108,771,833.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,729,622.22 : 385,110,542.16 = 72,511,522.74 : x
  2. Step 2: Convert to fraction form
    256,729,622.22/385,110,542.16 = 72,511,522.74/x
  3. Step 3: Cross multiply
    256,729,622.22x = 385,110,542.16 × 72,511,522.74
  4. Step 4: Simplify right side
    256,729,622.22x = 27,924,951,835,248,568
  5. Step 5: Solve for x
    x = 27,924,951,835,248,568/256,729,622.22
  6. Step 6: Final answer
    x = 108,771,833.94

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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.