Home / 721,607,043.27-995,817,719.79-391,582,182.27

Finding the Fourth Proportional to 721,607,043.27, 995,817,719.79 and 391,582,182.27

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Solution

The fourth proportional to 721,607,043.27, 995,817,719.79 and 391,582,182.27 is: 540,383,411.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,607,043.27 : 995,817,719.79 = 391,582,182.27 : x
  2. Step 2: Convert to fraction form
    721,607,043.27/995,817,719.79 = 391,582,182.27/x
  3. Step 3: Cross multiply
    721,607,043.27x = 995,817,719.79 × 391,582,182.27
  4. Step 4: Simplify right side
    721,607,043.27x = 389,944,475,858,503,552
  5. Step 5: Solve for x
    x = 389,944,475,858,503,552/721,607,043.27
  6. Step 6: Final answer
    x = 540,383,411.57

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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.