Home / 721,606,953.96-995,817,596.56-391,582,092.96

Finding the Fourth Proportional to 721,606,953.96, 995,817,596.56 and 391,582,092.96

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Solution

The fourth proportional to 721,606,953.96, 995,817,596.56 and 391,582,092.96 is: 540,383,288.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,606,953.96 : 995,817,596.56 = 391,582,092.96 : x
  2. Step 2: Convert to fraction form
    721,606,953.96/995,817,596.56 = 391,582,092.96/x
  3. Step 3: Cross multiply
    721,606,953.96x = 995,817,596.56 × 391,582,092.96
  4. Step 4: Simplify right side
    721,606,953.96x = 389,944,338,667,361,664
  5. Step 5: Solve for x
    x = 389,944,338,667,361,664/721,606,953.96
  6. Step 6: Final answer
    x = 540,383,288.34

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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.