Home / 304,512,128.51-420,227,162.49-165,282,919.07

Finding the Fourth Proportional to 304,512,128.51, 420,227,162.49 and 165,282,919.07

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Solution

The fourth proportional to 304,512,128.51, 420,227,162.49 and 165,282,919.07 is: 228,090,659.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,512,128.51 : 420,227,162.49 = 165,282,919.07 : x
  2. Step 2: Convert to fraction form
    304,512,128.51/420,227,162.49 = 165,282,919.07/x
  3. Step 3: Cross multiply
    304,512,128.51x = 420,227,162.49 × 165,282,919.07
  4. Step 4: Simplify right side
    304,512,128.51x = 69,456,372,086,749,272
  5. Step 5: Solve for x
    x = 69,456,372,086,749,272/304,512,128.51
  6. Step 6: Final answer
    x = 228,090,659.07

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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.