Home / 120,431,097.76-166,182,923.28-68,209,710.88

Finding the Fourth Proportional to 120,431,097.76, 166,182,923.28 and 68,209,710.88

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Solution

The fourth proportional to 120,431,097.76, 166,182,923.28 and 68,209,710.88 is: 94,122,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,431,097.76 : 166,182,923.28 = 68,209,710.88 : x
  2. Step 2: Convert to fraction form
    120,431,097.76/166,182,923.28 = 68,209,710.88/x
  3. Step 3: Cross multiply
    120,431,097.76x = 166,182,923.28 × 68,209,710.88
  4. Step 4: Simplify right side
    120,431,097.76x = 11,335,289,150,122,020
  5. Step 5: Solve for x
    x = 11,335,289,150,122,020/120,431,097.76
  6. Step 6: Final answer
    x = 94,122,609.20

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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.