Home / 199,331,437.20-298,997,155.80-145,583,725.20

Finding the Fourth Proportional to 199,331,437.20, 298,997,155.80 and 145,583,725.20

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Solution

The fourth proportional to 199,331,437.20, 298,997,155.80 and 145,583,725.20 is: 218,375,587.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,331,437.20 : 298,997,155.80 = 145,583,725.20 : x
  2. Step 2: Convert to fraction form
    199,331,437.20/298,997,155.80 = 145,583,725.20/x
  3. Step 3: Cross multiply
    199,331,437.20x = 298,997,155.80 × 145,583,725.20
  4. Step 4: Simplify right side
    199,331,437.20x = 43,529,119,765,568,784
  5. Step 5: Solve for x
    x = 43,529,119,765,568,784/199,331,437.20
  6. Step 6: Final answer
    x = 218,375,587.80

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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.