Home / 140,597,212.24-194,021,985.72-78,719,765.14

Finding the Fourth Proportional to 140,597,212.24, 194,021,985.72 and 78,719,765.14

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Solution

The fourth proportional to 140,597,212.24, 194,021,985.72 and 78,719,765.14 is: 108,632,062.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,597,212.24 : 194,021,985.72 = 78,719,765.14 : x
  2. Step 2: Convert to fraction form
    140,597,212.24/194,021,985.72 = 78,719,765.14/x
  3. Step 3: Cross multiply
    140,597,212.24x = 194,021,985.72 × 78,719,765.14
  4. Step 4: Simplify right side
    140,597,212.24x = 15,273,365,147,874,834
  5. Step 5: Solve for x
    x = 15,273,365,147,874,834/140,597,212.24
  6. Step 6: Final answer
    x = 108,632,062.50

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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.