Home / 448,478,165.40-672,238,951.20-172,022,557.20

Finding the Fourth Proportional to 448,478,165.40, 672,238,951.20 and 172,022,557.20

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Solution

The fourth proportional to 448,478,165.40, 672,238,951.20 and 172,022,557.20 is: 257,850,375.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,478,165.40 : 672,238,951.20 = 172,022,557.20 : x
  2. Step 2: Convert to fraction form
    448,478,165.40/672,238,951.20 = 172,022,557.20/x
  3. Step 3: Cross multiply
    448,478,165.40x = 672,238,951.20 × 172,022,557.20
  4. Step 4: Simplify right side
    448,478,165.40x = 115,640,263,434,870,016
  5. Step 5: Solve for x
    x = 115,640,263,434,870,016/448,478,165.40
  6. Step 6: Final answer
    x = 257,850,375.68

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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.