Home / 218,227,829.76-301,152,921.60-120,442,682.88

Finding the Fourth Proportional to 218,227,829.76, 301,152,921.60 and 120,442,682.88

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Solution

The fourth proportional to 218,227,829.76, 301,152,921.60 and 120,442,682.88 is: 166,210,083.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,227,829.76 : 301,152,921.60 = 120,442,682.88 : x
  2. Step 2: Convert to fraction form
    218,227,829.76/301,152,921.60 = 120,442,682.88/x
  3. Step 3: Cross multiply
    218,227,829.76x = 301,152,921.60 × 120,442,682.88
  4. Step 4: Simplify right side
    218,227,829.76x = 36,271,665,834,654,304
  5. Step 5: Solve for x
    x = 36,271,665,834,654,304/218,227,829.76
  6. Step 6: Final answer
    x = 166,210,083.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.