Home / 120,410,988.16-166,167,034.56-65,406,885.76

Finding the Fourth Proportional to 120,410,988.16, 166,167,034.56 and 65,406,885.76

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Solution

The fourth proportional to 120,410,988.16, 166,167,034.56 and 65,406,885.76 is: 90,261,432.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,410,988.16 : 166,167,034.56 = 65,406,885.76 : x
  2. Step 2: Convert to fraction form
    120,410,988.16/166,167,034.56 = 65,406,885.76/x
  3. Step 3: Cross multiply
    120,410,988.16x = 166,167,034.56 × 65,406,885.76
  4. Step 4: Simplify right side
    120,410,988.16x = 10,868,468,246,543,892
  5. Step 5: Solve for x
    x = 10,868,468,246,543,892/120,410,988.16
  6. Step 6: Final answer
    x = 90,261,432.22

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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.