Home / 1,218,567,240-1,681,622,791.20-697,046,472

Finding the Fourth Proportional to 1,218,567,240, 1,681,622,791.20 and 697,046,472

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Solution

The fourth proportional to 1,218,567,240, 1,681,622,791.20 and 697,046,472 is: 961,924,131.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,567,240 : 1,681,622,791.20 = 697,046,472 : x
  2. Step 2: Convert to fraction form
    1,218,567,240/1,681,622,791.20 = 697,046,472/x
  3. Step 3: Cross multiply
    1,218,567,240x = 1,681,622,791.20 × 697,046,472
  4. Step 4: Simplify right side
    1,218,567,240x = 1,172,169,233,840,752,640
  5. Step 5: Solve for x
    x = 1,172,169,233,840,752,640/1,218,567,240
  6. Step 6: Final answer
    x = 961,924,131.36

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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.