Home / 827,143,400.90-1,240,715,101.35-736,745,286.80

Finding the Fourth Proportional to 827,143,400.90, 1,240,715,101.35 and 736,745,286.80

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Solution

The fourth proportional to 827,143,400.90, 1,240,715,101.35 and 736,745,286.80 is: 1,105,117,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,143,400.90 : 1,240,715,101.35 = 736,745,286.80 : x
  2. Step 2: Convert to fraction form
    827,143,400.90/1,240,715,101.35 = 736,745,286.80/x
  3. Step 3: Cross multiply
    827,143,400.90x = 1,240,715,101.35 × 736,745,286.80
  4. Step 4: Simplify right side
    827,143,400.90x = 914,091,003,181,196,672
  5. Step 5: Solve for x
    x = 914,091,003,181,196,672/827,143,400.90
  6. Step 6: Final answer
    x = 1,105,117,930.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.