Home / 20,009,421.64-27,622,523.46-13,405,381.48

Finding the Fourth Proportional to 20,009,421.64, 27,622,523.46 and 13,405,381.48

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Solution

The fourth proportional to 20,009,421.64, 27,622,523.46 and 13,405,381.48 is: 18,505,805.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009,421.64 : 27,622,523.46 = 13,405,381.48 : x
  2. Step 2: Convert to fraction form
    20,009,421.64/27,622,523.46 = 13,405,381.48/x
  3. Step 3: Cross multiply
    20,009,421.64x = 27,622,523.46 × 13,405,381.48
  4. Step 4: Simplify right side
    20,009,421.64x = 370,290,464,421,549.56
  5. Step 5: Solve for x
    x = 370,290,464,421,549.56/20,009,421.64
  6. Step 6: Final answer
    x = 18,505,805.47

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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.