Home / 21,291,039.42-31,936,559.76-6,719,435.70

Finding the Fourth Proportional to 21,291,039.42, 31,936,559.76 and 6,719,435.70

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Solution

The fourth proportional to 21,291,039.42, 31,936,559.76 and 6,719,435.70 is: 10,079,153.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291,039.42 : 31,936,559.76 = 6,719,435.70 : x
  2. Step 2: Convert to fraction form
    21,291,039.42/31,936,559.76 = 6,719,435.70/x
  3. Step 3: Cross multiply
    21,291,039.42x = 31,936,559.76 × 6,719,435.70
  4. Step 4: Simplify right side
    21,291,039.42x = 214,595,659,786,527.44
  5. Step 5: Solve for x
    x = 214,595,659,786,527.44/21,291,039.42
  6. Step 6: Final answer
    x = 10,079,153.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.