Home / 12,390,194.37-18,578,909.94-5,560,913.05

Finding the Fourth Proportional to 12,390,194.37, 18,578,909.94 and 5,560,913.05

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Solution

The fourth proportional to 12,390,194.37, 18,578,909.94 and 5,560,913.05 is: 8,338,505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,194.37 : 18,578,909.94 = 5,560,913.05 : x
  2. Step 2: Convert to fraction form
    12,390,194.37/18,578,909.94 = 5,560,913.05/x
  3. Step 3: Cross multiply
    12,390,194.37x = 18,578,909.94 × 5,560,913.05
  4. Step 4: Simplify right side
    12,390,194.37x = 103,315,702,740,120.72
  5. Step 5: Solve for x
    x = 103,315,702,740,120.72/12,390,194.37
  6. Step 6: Final answer
    x = 8,338,505.41

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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.