Home / 689,157,236.06-951,117,388.72-391,844,026.37

Finding the Fourth Proportional to 689,157,236.06, 951,117,388.72 and 391,844,026.37

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Solution

The fourth proportional to 689,157,236.06, 951,117,388.72 and 391,844,026.37 is: 540,790,472.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,157,236.06 : 951,117,388.72 = 391,844,026.37 : x
  2. Step 2: Convert to fraction form
    689,157,236.06/951,117,388.72 = 391,844,026.37/x
  3. Step 3: Cross multiply
    689,157,236.06x = 951,117,388.72 × 391,844,026.37
  4. Step 4: Simplify right side
    689,157,236.06x = 372,689,667,147,963,392
  5. Step 5: Solve for x
    x = 372,689,667,147,963,392/689,157,236.06
  6. Step 6: Final answer
    x = 540,790,472.26

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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.