Home / 1,319,257,461.74-1,820,568,255.20-716,422,815.44

Finding the Fourth Proportional to 1,319,257,461.74, 1,820,568,255.20 and 716,422,815.44

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Solution

The fourth proportional to 1,319,257,461.74, 1,820,568,255.20 and 716,422,815.44 is: 988,659,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,257,461.74 : 1,820,568,255.20 = 716,422,815.44 : x
  2. Step 2: Convert to fraction form
    1,319,257,461.74/1,820,568,255.20 = 716,422,815.44/x
  3. Step 3: Cross multiply
    1,319,257,461.74x = 1,820,568,255.20 × 716,422,815.44
  4. Step 4: Simplify right side
    1,319,257,461.74x = 1,304,296,635,081,969,408
  5. Step 5: Solve for x
    x = 1,304,296,635,081,969,408/1,319,257,461.74
  6. Step 6: Final answer
    x = 988,659,661.14

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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.