Home / 199,331,373.20-298,997,059.80-145,583,661.20

Finding the Fourth Proportional to 199,331,373.20, 298,997,059.80 and 145,583,661.20

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Solution

The fourth proportional to 199,331,373.20, 298,997,059.80 and 145,583,661.20 is: 218,375,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,331,373.20 : 298,997,059.80 = 145,583,661.20 : x
  2. Step 2: Convert to fraction form
    199,331,373.20/298,997,059.80 = 145,583,661.20/x
  3. Step 3: Cross multiply
    199,331,373.20x = 298,997,059.80 × 145,583,661.20
  4. Step 4: Simplify right side
    199,331,373.20x = 43,529,086,653,719,336
  5. Step 5: Solve for x
    x = 43,529,086,653,719,336/199,331,373.20
  6. Step 6: Final answer
    x = 218,375,491.80

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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.