Home / 199,320,079.20-299,064,099.60-108,508,840.80

Finding the Fourth Proportional to 199,320,079.20, 299,064,099.60 and 108,508,840.80

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Solution

The fourth proportional to 199,320,079.20, 299,064,099.60 and 108,508,840.80 is: 162,808,979.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,320,079.20 : 299,064,099.60 = 108,508,840.80 : x
  2. Step 2: Convert to fraction form
    199,320,079.20/299,064,099.60 = 108,508,840.80/x
  3. Step 3: Cross multiply
    199,320,079.20x = 299,064,099.60 × 108,508,840.80
  4. Step 4: Simplify right side
    199,320,079.20x = 32,451,098,772,491,744
  5. Step 5: Solve for x
    x = 32,451,098,772,491,744/199,320,079.20
  6. Step 6: Final answer
    x = 162,808,979.92

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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.