Home / 13,191,510.69-18,204,286.50-7,311,524.08

Finding the Fourth Proportional to 13,191,510.69, 18,204,286.50 and 7,311,524.08

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Solution

The fourth proportional to 13,191,510.69, 18,204,286.50 and 7,311,524.08 is: 10,089,904.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191,510.69 : 18,204,286.50 = 7,311,524.08 : x
  2. Step 2: Convert to fraction form
    13,191,510.69/18,204,286.50 = 7,311,524.08/x
  3. Step 3: Cross multiply
    13,191,510.69x = 18,204,286.50 × 7,311,524.08
  4. Step 4: Simplify right side
    13,191,510.69x = 133,101,079,157,571.59
  5. Step 5: Solve for x
    x = 133,101,079,157,571.59/13,191,510.69
  6. Step 6: Final answer
    x = 10,089,904.21

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1.5x scale

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.