Home / 154,923,324-213,794,186.64-85,308,539.04

Finding the Fourth Proportional to 154,923,324, 213,794,186.64 and 85,308,539.04

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Solution

The fourth proportional to 154,923,324, 213,794,186.64 and 85,308,539.04 is: 117,725,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,923,324 : 213,794,186.64 = 85,308,539.04 : x
  2. Step 2: Convert to fraction form
    154,923,324/213,794,186.64 = 85,308,539.04/x
  3. Step 3: Cross multiply
    154,923,324x = 213,794,186.64 × 85,308,539.04
  4. Step 4: Simplify right side
    154,923,324x = 18,238,469,717,503,488
  5. Step 5: Solve for x
    x = 18,238,469,717,503,488/154,923,324
  6. Step 6: Final answer
    x = 117,725,783.61

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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.