Home / 140,802,247.20-194,303,633.04-78,077,998.56

Finding the Fourth Proportional to 140,802,247.20, 194,303,633.04 and 78,077,998.56

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Solution

The fourth proportional to 140,802,247.20, 194,303,633.04 and 78,077,998.56 is: 107,745,714.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,802,247.20 : 194,303,633.04 = 78,077,998.56 : x
  2. Step 2: Convert to fraction form
    140,802,247.20/194,303,633.04 = 78,077,998.56/x
  3. Step 3: Cross multiply
    140,802,247.20x = 194,303,633.04 × 78,077,998.56
  4. Step 4: Simplify right side
    140,802,247.20x = 15,170,838,780,699,888
  5. Step 5: Solve for x
    x = 15,170,838,780,699,888/140,802,247.20
  6. Step 6: Final answer
    x = 107,745,714.88

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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.