Home / 28,623,163.56-39,499,935.82-15,570,391.34

Finding the Fourth Proportional to 28,623,163.56, 39,499,935.82 and 15,570,391.34

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Solution

The fourth proportional to 28,623,163.56, 39,499,935.82 and 15,570,391.34 is: 21,487,123.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623,163.56 : 39,499,935.82 = 15,570,391.34 : x
  2. Step 2: Convert to fraction form
    28,623,163.56/39,499,935.82 = 15,570,391.34/x
  3. Step 3: Cross multiply
    28,623,163.56x = 39,499,935.82 × 15,570,391.34
  4. Step 4: Simplify right side
    28,623,163.56x = 615,029,458,622,283.75
  5. Step 5: Solve for x
    x = 615,029,458,622,283.75/28,623,163.56
  6. Step 6: Final answer
    x = 21,487,123.79

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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.