Home / 28,760,940.61-39,690,957.56-15,708,815.26

Finding the Fourth Proportional to 28,760,940.61, 39,690,957.56 and 15,708,815.26

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Solution

The fourth proportional to 28,760,940.61, 39,690,957.56 and 15,708,815.26 is: 21,678,634.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760,940.61 : 39,690,957.56 = 15,708,815.26 : x
  2. Step 2: Convert to fraction form
    28,760,940.61/39,690,957.56 = 15,708,815.26/x
  3. Step 3: Cross multiply
    28,760,940.61x = 39,690,957.56 × 15,708,815.26
  4. Step 4: Simplify right side
    28,760,940.61x = 623,497,919,624,768.88
  5. Step 5: Solve for x
    x = 623,497,919,624,768.88/28,760,940.61
  6. Step 6: Final answer
    x = 21,678,634.51

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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.