Home / 304,723,640.68-420,544,558.59-172,588,143.64

Finding the Fourth Proportional to 304,723,640.68, 420,544,558.59 and 172,588,143.64

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Solution

The fourth proportional to 304,723,640.68, 420,544,558.59 and 172,588,143.64 is: 238,186,326.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,723,640.68 : 420,544,558.59 = 172,588,143.64 : x
  2. Step 2: Convert to fraction form
    304,723,640.68/420,544,558.59 = 172,588,143.64/x
  3. Step 3: Cross multiply
    304,723,640.68x = 420,544,558.59 × 172,588,143.64
  4. Step 4: Simplify right side
    304,723,640.68x = 72,581,004,684,951,312
  5. Step 5: Solve for x
    x = 72,581,004,684,951,312/304,723,640.68
  6. Step 6: Final answer
    x = 238,186,326.87

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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.