Home / 140,110,556.52-193,364,519.58-78,242,847.24

Finding the Fourth Proportional to 140,110,556.52, 193,364,519.58 and 78,242,847.24

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Solution

The fourth proportional to 140,110,556.52, 193,364,519.58 and 78,242,847.24 is: 107,981,803.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,110,556.52 : 193,364,519.58 = 78,242,847.24 : x
  2. Step 2: Convert to fraction form
    140,110,556.52/193,364,519.58 = 78,242,847.24/x
  3. Step 3: Cross multiply
    140,110,556.52x = 193,364,519.58 × 78,242,847.24
  4. Step 4: Simplify right side
    140,110,556.52x = 15,129,390,567,133,928
  5. Step 5: Solve for x
    x = 15,129,390,567,133,928/140,110,556.52
  6. Step 6: Final answer
    x = 107,981,803.39

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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.