Home / 155,903,662.93-215,147,122.20-85,339,675.63

Finding the Fourth Proportional to 155,903,662.93, 215,147,122.20 and 85,339,675.63

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Solution

The fourth proportional to 155,903,662.93, 215,147,122.20 and 85,339,675.63 is: 117,768,789.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,903,662.93 : 215,147,122.20 = 85,339,675.63 : x
  2. Step 2: Convert to fraction form
    155,903,662.93/215,147,122.20 = 85,339,675.63/x
  3. Step 3: Cross multiply
    155,903,662.93x = 215,147,122.20 × 85,339,675.63
  4. Step 4: Simplify right side
    155,903,662.93x = 18,360,585,621,275,968
  5. Step 5: Solve for x
    x = 18,360,585,621,275,968/155,903,662.93
  6. Step 6: Final answer
    x = 117,768,789.24

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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.