Home / 140,597,213.42-194,021,987.64-78,719,766.32

Finding the Fourth Proportional to 140,597,213.42, 194,021,987.64 and 78,719,766.32

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Solution

The fourth proportional to 140,597,213.42, 194,021,987.64 and 78,719,766.32 is: 108,632,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,597,213.42 : 194,021,987.64 = 78,719,766.32 : x
  2. Step 2: Convert to fraction form
    140,597,213.42/194,021,987.64 = 78,719,766.32/x
  3. Step 3: Cross multiply
    140,597,213.42x = 194,021,987.64 × 78,719,766.32
  4. Step 4: Simplify right side
    140,597,213.42x = 15,273,365,527,962,726
  5. Step 5: Solve for x
    x = 15,273,365,527,962,726/140,597,213.42
  6. Step 6: Final answer
    x = 108,632,064.30

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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.