Home / 140,597,211.42-194,021,984.88-78,719,764.32

Finding the Fourth Proportional to 140,597,211.42, 194,021,984.88 and 78,719,764.32

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Solution

The fourth proportional to 140,597,211.42, 194,021,984.88 and 78,719,764.32 is: 108,632,061.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,597,211.42 : 194,021,984.88 = 78,719,764.32 : x
  2. Step 2: Convert to fraction form
    140,597,211.42/194,021,984.88 = 78,719,764.32/x
  3. Step 3: Cross multiply
    140,597,211.42x = 194,021,984.88 × 78,719,764.32
  4. Step 4: Simplify right side
    140,597,211.42x = 15,273,364,922,652,202
  5. Step 5: Solve for x
    x = 15,273,364,922,652,202/140,597,211.42
  6. Step 6: Final answer
    x = 108,632,061.54

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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.