Home / 21,750,641.82-30,015,251.19-11,961,075.78

Finding the Fourth Proportional to 21,750,641.82, 30,015,251.19 and 11,961,075.78

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Solution

The fourth proportional to 21,750,641.82, 30,015,251.19 and 11,961,075.78 is: 16,505,935.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,750,641.82 : 30,015,251.19 = 11,961,075.78 : x
  2. Step 2: Convert to fraction form
    21,750,641.82/30,015,251.19 = 11,961,075.78/x
  3. Step 3: Cross multiply
    21,750,641.82x = 30,015,251.19 × 11,961,075.78
  4. Step 4: Simplify right side
    21,750,641.82x = 359,014,694,039,325.19
  5. Step 5: Solve for x
    x = 359,014,694,039,325.19/21,750,641.82
  6. Step 6: Final answer
    x = 16,505,935.64

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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.