Home / 149,892,785.52-206,788,697.82-100,349,099.88

Finding the Fourth Proportional to 149,892,785.52, 206,788,697.82 and 100,349,099.88

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Solution

The fourth proportional to 149,892,785.52, 206,788,697.82 and 100,349,099.88 is: 138,439,349.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,892,785.52 : 206,788,697.82 = 100,349,099.88 : x
  2. Step 2: Convert to fraction form
    149,892,785.52/206,788,697.82 = 100,349,099.88/x
  3. Step 3: Cross multiply
    149,892,785.52x = 206,788,697.82 × 100,349,099.88
  4. Step 4: Simplify right side
    149,892,785.52x = 20,751,059,691,594,316
  5. Step 5: Solve for x
    x = 20,751,059,691,594,316/149,892,785.52
  6. Step 6: Final answer
    x = 138,439,349.30

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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.