Home / 155,903,661.93-215,147,120.82-85,339,674.63

Finding the Fourth Proportional to 155,903,661.93, 215,147,120.82 and 85,339,674.63

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Solution

The fourth proportional to 155,903,661.93, 215,147,120.82 and 85,339,674.63 is: 117,768,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,903,661.93 : 215,147,120.82 = 85,339,674.63 : x
  2. Step 2: Convert to fraction form
    155,903,661.93/215,147,120.82 = 85,339,674.63/x
  3. Step 3: Cross multiply
    155,903,661.93x = 215,147,120.82 × 85,339,674.63
  4. Step 4: Simplify right side
    155,903,661.93x = 18,360,585,288,360,096
  5. Step 5: Solve for x
    x = 18,360,585,288,360,096/155,903,661.93
  6. Step 6: Final answer
    x = 117,768,787.86

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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.