Home / 14,987,259.28-20,682,795.80-9,189,238

Finding the Fourth Proportional to 14,987,259.28, 20,682,795.80 and 9,189,238

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Solution

The fourth proportional to 14,987,259.28, 20,682,795.80 and 9,189,238 is: 12,681,380.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,987,259.28 : 20,682,795.80 = 9,189,238 : x
  2. Step 2: Convert to fraction form
    14,987,259.28/20,682,795.80 = 9,189,238/x
  3. Step 3: Cross multiply
    14,987,259.28x = 20,682,795.80 × 9,189,238
  4. Step 4: Simplify right side
    14,987,259.28x = 190,059,133,111,600.41
  5. Step 5: Solve for x
    x = 190,059,133,111,600.41/14,987,259.28
  6. Step 6: Final answer
    x = 12,681,380.20

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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.