Home / 212,819,419.20-319,227,203.52-67,253,004.48

Finding the Fourth Proportional to 212,819,419.20, 319,227,203.52 and 67,253,004.48

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Solution

The fourth proportional to 212,819,419.20, 319,227,203.52 and 67,253,004.48 is: 100,878,898.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,819,419.20 : 319,227,203.52 = 67,253,004.48 : x
  2. Step 2: Convert to fraction form
    212,819,419.20/319,227,203.52 = 67,253,004.48/x
  3. Step 3: Cross multiply
    212,819,419.20x = 319,227,203.52 × 67,253,004.48
  4. Step 4: Simplify right side
    212,819,419.20x = 21,468,988,548,468,432
  5. Step 5: Solve for x
    x = 21,468,988,548,468,432/212,819,419.20
  6. Step 6: Final answer
    x = 100,878,898.31

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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.