Home / 13,653,765.81-18,846,687.15-10,867,999.03

Finding the Fourth Proportional to 13,653,765.81, 18,846,687.15 and 10,867,999.03

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Solution

The fourth proportional to 13,653,765.81, 18,846,687.15 and 10,867,999.03 is: 15,001,412.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653,765.81 : 18,846,687.15 = 10,867,999.03 : x
  2. Step 2: Convert to fraction form
    13,653,765.81/18,846,687.15 = 10,867,999.03/x
  3. Step 3: Cross multiply
    13,653,765.81x = 18,846,687.15 × 10,867,999.03
  4. Step 4: Simplify right side
    13,653,765.81x = 204,825,777,617,796.72
  5. Step 5: Solve for x
    x = 204,825,777,617,796.72/13,653,765.81
  6. Step 6: Final answer
    x = 15,001,412.83

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1.5x scale

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.