Home / 1,319,257,460.12-1,820,568,252.96-716,422,813.80

Finding the Fourth Proportional to 1,319,257,460.12, 1,820,568,252.96 and 716,422,813.80

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Solution

The fourth proportional to 1,319,257,460.12, 1,820,568,252.96 and 716,422,813.80 is: 988,659,658.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,257,460.12 : 1,820,568,252.96 = 716,422,813.80 : x
  2. Step 2: Convert to fraction form
    1,319,257,460.12/1,820,568,252.96 = 716,422,813.80/x
  3. Step 3: Cross multiply
    1,319,257,460.12x = 1,820,568,252.96 × 716,422,813.80
  4. Step 4: Simplify right side
    1,319,257,460.12x = 1,304,296,630,493,726,208
  5. Step 5: Solve for x
    x = 1,304,296,630,493,726,208/1,319,257,460.12
  6. Step 6: Final answer
    x = 988,659,658.88

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Double scale
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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.