Home / 28,926,635.64-39,919,908.54-15,874,361.61

Finding the Fourth Proportional to 28,926,635.64, 39,919,908.54 and 15,874,361.61

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Solution

The fourth proportional to 28,926,635.64, 39,919,908.54 and 15,874,361.61 is: 21,907,250.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926,635.64 : 39,919,908.54 = 15,874,361.61 : x
  2. Step 2: Convert to fraction form
    28,926,635.64/39,919,908.54 = 15,874,361.61/x
  3. Step 3: Cross multiply
    28,926,635.64x = 39,919,908.54 × 15,874,361.61
  4. Step 4: Simplify right side
    28,926,635.64x = 633,703,063,602,087.12
  5. Step 5: Solve for x
    x = 633,703,063,602,087.12/28,926,635.64
  6. Step 6: Final answer
    x = 21,907,250.86

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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.