Home / 13,541,434-20,315,432.72-7,787,850.10

Finding the Fourth Proportional to 13,541,434, 20,315,432.72 and 7,787,850.10

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Solution

The fourth proportional to 13,541,434, 20,315,432.72 and 7,787,850.10 is: 11,683,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541,434 : 20,315,432.72 = 7,787,850.10 : x
  2. Step 2: Convert to fraction form
    13,541,434/20,315,432.72 = 7,787,850.10/x
  3. Step 3: Cross multiply
    13,541,434x = 20,315,432.72 × 7,787,850.10
  4. Step 4: Simplify right side
    13,541,434x = 158,213,544,739,995.25
  5. Step 5: Solve for x
    x = 158,213,544,739,995.25/13,541,434
  6. Step 6: Final answer
    x = 11,683,662.51

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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.