Home / 1,277,716,466.49-1,763,265,855.86-720,797,791.29

Finding the Fourth Proportional to 1,277,716,466.49, 1,763,265,855.86 and 720,797,791.29

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Solution

The fourth proportional to 1,277,716,466.49, 1,763,265,855.86 and 720,797,791.29 is: 994,710,616.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,716,466.49 : 1,763,265,855.86 = 720,797,791.29 : x
  2. Step 2: Convert to fraction form
    1,277,716,466.49/1,763,265,855.86 = 720,797,791.29/x
  3. Step 3: Cross multiply
    1,277,716,466.49x = 1,763,265,855.86 × 720,797,791.29
  4. Step 4: Simplify right side
    1,277,716,466.49x = 1,270,958,134,360,959,488
  5. Step 5: Solve for x
    x = 1,270,958,134,360,959,488/1,277,716,466.49
  6. Step 6: Final answer
    x = 994,710,616.71

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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.