Home / 300,272,171.72-450,321,258.71-90,174,381.44

Finding the Fourth Proportional to 300,272,171.72, 450,321,258.71 and 90,174,381.44

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Solution

The fourth proportional to 300,272,171.72, 450,321,258.71 and 90,174,381.44 is: 135,235,445.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,272,171.72 : 450,321,258.71 = 90,174,381.44 : x
  2. Step 2: Convert to fraction form
    300,272,171.72/450,321,258.71 = 90,174,381.44/x
  3. Step 3: Cross multiply
    300,272,171.72x = 450,321,258.71 × 90,174,381.44
  4. Step 4: Simplify right side
    300,272,171.72x = 40,607,440,951,430,288
  5. Step 5: Solve for x
    x = 40,607,440,951,430,288/300,272,171.72
  6. Step 6: Final answer
    x = 135,235,445.63

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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.