Home / 721,689,758.35-995,787,815.06-439,243,016.74

Finding the Fourth Proportional to 721,689,758.35, 995,787,815.06 and 439,243,016.74

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Solution

The fourth proportional to 721,689,758.35, 995,787,815.06 and 439,243,016.74 is: 606,067,688.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,689,758.35 : 995,787,815.06 = 439,243,016.74 : x
  2. Step 2: Convert to fraction form
    721,689,758.35/995,787,815.06 = 439,243,016.74/x
  3. Step 3: Cross multiply
    721,689,758.35x = 995,787,815.06 × 439,243,016.74
  4. Step 4: Simplify right side
    721,689,758.35x = 437,392,843,918,496,256
  5. Step 5: Solve for x
    x = 437,392,843,918,496,256/721,689,758.35
  6. Step 6: Final answer
    x = 606,067,688.86

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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.