Home / 120,458,987.24-166,234,398.80-65,454,843.72

Finding the Fourth Proportional to 120,458,987.24, 166,234,398.80 and 65,454,843.72

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Solution

The fourth proportional to 120,458,987.24, 166,234,398.80 and 65,454,843.72 is: 90,328,225.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,458,987.24 : 166,234,398.80 = 65,454,843.72 : x
  2. Step 2: Convert to fraction form
    120,458,987.24/166,234,398.80 = 65,454,843.72/x
  3. Step 3: Cross multiply
    120,458,987.24x = 166,234,398.80 × 65,454,843.72
  4. Step 4: Simplify right side
    120,458,987.24x = 10,880,846,594,342,156
  5. Step 5: Solve for x
    x = 10,880,846,594,342,156/120,458,987.24
  6. Step 6: Final answer
    x = 90,328,225.76

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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.