Home / 21,019,975.62-29,008,427.29-13,282,194.66

Finding the Fourth Proportional to 21,019,975.62, 29,008,427.29 and 13,282,194.66

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Solution

The fourth proportional to 21,019,975.62, 29,008,427.29 and 13,282,194.66 is: 18,329,972.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,975.62 : 29,008,427.29 = 13,282,194.66 : x
  2. Step 2: Convert to fraction form
    21,019,975.62/29,008,427.29 = 13,282,194.66/x
  3. Step 3: Cross multiply
    21,019,975.62x = 29,008,427.29 × 13,282,194.66
  4. Step 4: Simplify right side
    21,019,975.62x = 385,295,578,046,236.25
  5. Step 5: Solve for x
    x = 385,295,578,046,236.25/21,019,975.62
  6. Step 6: Final answer
    x = 18,329,972.64

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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.