Home / 13,366,986.05-20,093,289.60-12,419,249.60

Finding the Fourth Proportional to 13,366,986.05, 20,093,289.60 and 12,419,249.60

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Solution

The fourth proportional to 13,366,986.05, 20,093,289.60 and 12,419,249.60 is: 18,668,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366,986.05 : 20,093,289.60 = 12,419,249.60 : x
  2. Step 2: Convert to fraction form
    13,366,986.05/20,093,289.60 = 12,419,249.60/x
  3. Step 3: Cross multiply
    13,366,986.05x = 20,093,289.60 × 12,419,249.60
  4. Step 4: Simplify right side
    13,366,986.05x = 249,543,578,827,484.16
  5. Step 5: Solve for x
    x = 249,543,578,827,484.16/13,366,986.05
  6. Step 6: Final answer
    x = 18,668,649.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.