Home / 1,153,171,508,396.80-1,728,546,413,179.10-387,994,009,661.72

Finding the Fourth Proportional to 1,153,171,508,396.80, 1,728,546,413,179.10 and 387,994,009,661.72

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Solution

The fourth proportional to 1,153,171,508,396.80, 1,728,546,413,179.10 and 387,994,009,661.72 is: 581,583,614,277.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,171,508,396.80 : 1,728,546,413,179.10 = 387,994,009,661.72 : x
  2. Step 2: Convert to fraction form
    1,153,171,508,396.80/1,728,546,413,179.10 = 387,994,009,661.72/x
  3. Step 3: Cross multiply
    1,153,171,508,396.80x = 1,728,546,413,179.10 × 387,994,009,661.72
  4. Step 4: Simplify right side
    1,153,171,508,396.80x = 670,665,653,735,743,201,214,464
  5. Step 5: Solve for x
    x = 670,665,653,735,743,201,214,464/1,153,171,508,396.80
  6. Step 6: Final answer
    x = 581,583,614,277.93

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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.