Home / 721,606,952.96-995,817,595.18-391,582,091.96

Finding the Fourth Proportional to 721,606,952.96, 995,817,595.18 and 391,582,091.96

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Solution

The fourth proportional to 721,606,952.96, 995,817,595.18 and 391,582,091.96 is: 540,383,286.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,606,952.96 : 995,817,595.18 = 391,582,091.96 : x
  2. Step 2: Convert to fraction form
    721,606,952.96/995,817,595.18 = 391,582,091.96/x
  3. Step 3: Cross multiply
    721,606,952.96x = 995,817,595.18 × 391,582,091.96
  4. Step 4: Simplify right side
    721,606,952.96x = 389,944,337,131,160,768
  5. Step 5: Solve for x
    x = 389,944,337,131,160,768/721,606,952.96
  6. Step 6: Final answer
    x = 540,383,286.96

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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.