Home / 21,218,976-29,282,186.88-11,561,184

Finding the Fourth Proportional to 21,218,976, 29,282,186.88 and 11,561,184

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Solution

The fourth proportional to 21,218,976, 29,282,186.88 and 11,561,184 is: 15,954,433.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,218,976 : 29,282,186.88 = 11,561,184 : x
  2. Step 2: Convert to fraction form
    21,218,976/29,282,186.88 = 11,561,184/x
  3. Step 3: Cross multiply
    21,218,976x = 29,282,186.88 × 11,561,184
  4. Step 4: Simplify right side
    21,218,976x = 338,536,750,442,065.94
  5. Step 5: Solve for x
    x = 338,536,750,442,065.94/21,218,976
  6. Step 6: Final answer
    x = 15,954,433.92

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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.