Home / 15,631,141.31-21,571,101.63-8,661,935.28

Finding the Fourth Proportional to 15,631,141.31, 21,571,101.63 and 8,661,935.28

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Solution

The fourth proportional to 15,631,141.31, 21,571,101.63 and 8,661,935.28 is: 11,953,540.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631,141.31 : 21,571,101.63 = 8,661,935.28 : x
  2. Step 2: Convert to fraction form
    15,631,141.31/21,571,101.63 = 8,661,935.28/x
  3. Step 3: Cross multiply
    15,631,141.31x = 21,571,101.63 × 8,661,935.28
  4. Step 4: Simplify right side
    15,631,141.31x = 186,847,486,237,362.47
  5. Step 5: Solve for x
    x = 186,847,486,237,362.47/15,631,141.31
  6. Step 6: Final answer
    x = 11,953,540.86

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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.