Home / 20,045,380.72-27,662,643.48-10,878,023.56

Finding the Fourth Proportional to 20,045,380.72, 27,662,643.48 and 10,878,023.56

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Solution

The fourth proportional to 20,045,380.72, 27,662,643.48 and 10,878,023.56 is: 15,011,682.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045,380.72 : 27,662,643.48 = 10,878,023.56 : x
  2. Step 2: Convert to fraction form
    20,045,380.72/27,662,643.48 = 10,878,023.56/x
  3. Step 3: Cross multiply
    20,045,380.72x = 27,662,643.48 × 10,878,023.56
  4. Step 4: Simplify right side
    20,045,380.72x = 300,914,887,507,320.44
  5. Step 5: Solve for x
    x = 300,914,887,507,320.44/20,045,380.72
  6. Step 6: Final answer
    x = 15,011,682.33

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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.