Home / 312,385,602.83-431,082,789.08-171,251,996.36

Finding the Fourth Proportional to 312,385,602.83, 431,082,789.08 and 171,251,996.36

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Solution

The fourth proportional to 312,385,602.83, 431,082,789.08 and 171,251,996.36 is: 236,322,633.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,385,602.83 : 431,082,789.08 = 171,251,996.36 : x
  2. Step 2: Convert to fraction form
    312,385,602.83/431,082,789.08 = 171,251,996.36/x
  3. Step 3: Cross multiply
    312,385,602.83x = 431,082,789.08 × 171,251,996.36
  4. Step 4: Simplify right side
    312,385,602.83x = 73,823,788,223,375,120
  5. Step 5: Solve for x
    x = 73,823,788,223,375,120/312,385,602.83
  6. Step 6: Final answer
    x = 236,322,633.17

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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.