Home / 155,118,049.30-214,062,855.87-85,504,592.80

Finding the Fourth Proportional to 155,118,049.30, 214,062,855.87 and 85,504,592.80

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Solution

The fourth proportional to 155,118,049.30, 214,062,855.87 and 85,504,592.80 is: 117,996,309.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,118,049.30 : 214,062,855.87 = 85,504,592.80 : x
  2. Step 2: Convert to fraction form
    155,118,049.30/214,062,855.87 = 85,504,592.80/x
  3. Step 3: Cross multiply
    155,118,049.30x = 214,062,855.87 × 85,504,592.80
  4. Step 4: Simplify right side
    155,118,049.30x = 18,303,357,324,769,440
  5. Step 5: Solve for x
    x = 18,303,357,324,769,440/155,118,049.30
  6. Step 6: Final answer
    x = 117,996,309.31

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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.