Home / 256,230,207.90-384,307,987.05-74,458,431.90

Finding the Fourth Proportional to 256,230,207.90, 384,307,987.05 and 74,458,431.90

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Solution

The fourth proportional to 256,230,207.90, 384,307,987.05 and 74,458,431.90 is: 111,676,801.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,230,207.90 : 384,307,987.05 = 74,458,431.90 : x
  2. Step 2: Convert to fraction form
    256,230,207.90/384,307,987.05 = 74,458,431.90/x
  3. Step 3: Cross multiply
    256,230,207.90x = 384,307,987.05 × 74,458,431.90
  4. Step 4: Simplify right side
    256,230,207.90x = 28,614,970,082,388,512
  5. Step 5: Solve for x
    x = 28,614,970,082,388,512/256,230,207.90
  6. Step 6: Final answer
    x = 111,676,801.56

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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.