Home / 689,157,236.20-951,117,388.93-391,844,026.53

Finding the Fourth Proportional to 689,157,236.20, 951,117,388.93 and 391,844,026.53

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Solution

The fourth proportional to 689,157,236.20, 951,117,388.93 and 391,844,026.53 is: 540,790,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,157,236.20 : 951,117,388.93 = 391,844,026.53 : x
  2. Step 2: Convert to fraction form
    689,157,236.20/951,117,388.93 = 391,844,026.53/x
  3. Step 3: Cross multiply
    689,157,236.20x = 951,117,388.93 × 391,844,026.53
  4. Step 4: Simplify right side
    689,157,236.20x = 372,689,667,381,031,232
  5. Step 5: Solve for x
    x = 372,689,667,381,031,232/689,157,236.20
  6. Step 6: Final answer
    x = 540,790,472.48

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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.