Home / 21,120,182.82-29,145,864.21-11,462,390.82

Finding the Fourth Proportional to 21,120,182.82, 29,145,864.21 and 11,462,390.82

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Solution

The fourth proportional to 21,120,182.82, 29,145,864.21 and 11,462,390.82 is: 15,818,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,120,182.82 : 29,145,864.21 = 11,462,390.82 : x
  2. Step 2: Convert to fraction form
    21,120,182.82/29,145,864.21 = 11,462,390.82/x
  3. Step 3: Cross multiply
    21,120,182.82x = 29,145,864.21 × 11,462,390.82
  4. Step 4: Simplify right side
    21,120,182.82x = 334,081,286,361,670.56
  5. Step 5: Solve for x
    x = 334,081,286,361,670.56/21,120,182.82
  6. Step 6: Final answer
    x = 15,818,105.80

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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.