Home / 21,107,365.70-29,128,657.86-11,814,704.69

Finding the Fourth Proportional to 21,107,365.70, 29,128,657.86 and 11,814,704.69

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Solution

The fourth proportional to 21,107,365.70, 29,128,657.86 and 11,814,704.69 is: 16,304,568.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107,365.70 : 29,128,657.86 = 11,814,704.69 : x
  2. Step 2: Convert to fraction form
    21,107,365.70/29,128,657.86 = 11,814,704.69/x
  3. Step 3: Cross multiply
    21,107,365.70x = 29,128,657.86 × 11,814,704.69
  4. Step 4: Simplify right side
    21,107,365.70x = 344,146,490,486,304.06
  5. Step 5: Solve for x
    x = 344,146,490,486,304.06/21,107,365.70
  6. Step 6: Final answer
    x = 16,304,568.53

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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.