Home / 881,319,037.41-1,217,965,281.39-722,298,344.03

Finding the Fourth Proportional to 881,319,037.41, 1,217,965,281.39 and 722,298,344.03

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Solution

The fourth proportional to 881,319,037.41, 1,217,965,281.39 and 722,298,344.03 is: 998,201,863.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,319,037.41 : 1,217,965,281.39 = 722,298,344.03 : x
  2. Step 2: Convert to fraction form
    881,319,037.41/1,217,965,281.39 = 722,298,344.03/x
  3. Step 3: Cross multiply
    881,319,037.41x = 1,217,965,281.39 × 722,298,344.03
  4. Step 4: Simplify right side
    881,319,037.41x = 879,734,305,826,161,408
  5. Step 5: Solve for x
    x = 879,734,305,826,161,408/881,319,037.41
  6. Step 6: Final answer
    x = 998,201,863.89

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1.5x scale

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.