Home / 199,320,372.80-298,980,559.20-108,621,108.80

Finding the Fourth Proportional to 199,320,372.80, 298,980,559.20 and 108,621,108.80

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Solution

The fourth proportional to 199,320,372.80, 298,980,559.20 and 108,621,108.80 is: 162,931,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,320,372.80 : 298,980,559.20 = 108,621,108.80 : x
  2. Step 2: Convert to fraction form
    199,320,372.80/298,980,559.20 = 108,621,108.80/x
  3. Step 3: Cross multiply
    199,320,372.80x = 298,980,559.20 × 108,621,108.80
  4. Step 4: Simplify right side
    199,320,372.80x = 32,475,599,849,948,040
  5. Step 5: Solve for x
    x = 32,475,599,849,948,040/199,320,372.80
  6. Step 6: Final answer
    x = 162,931,663.20

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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.