Home / 20,349,673.88-28,079,388.69-12,089,523.87

Finding the Fourth Proportional to 20,349,673.88, 28,079,388.69 and 12,089,523.87

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Solution

The fourth proportional to 20,349,673.88, 28,079,388.69 and 12,089,523.87 is: 16,681,664.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349,673.88 : 28,079,388.69 = 12,089,523.87 : x
  2. Step 2: Convert to fraction form
    20,349,673.88/28,079,388.69 = 12,089,523.87/x
  3. Step 3: Cross multiply
    20,349,673.88x = 28,079,388.69 × 12,089,523.87
  4. Step 4: Simplify right side
    20,349,673.88x = 339,466,439,839,959.12
  5. Step 5: Solve for x
    x = 339,466,439,839,959.12/20,349,673.88
  6. Step 6: Final answer
    x = 16,681,664.87

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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.