Home / 13,173,803.28-18,191,008.49-8,280,601.38

Finding the Fourth Proportional to 13,173,803.28, 18,191,008.49 and 8,280,601.38

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Solution

The fourth proportional to 13,173,803.28, 18,191,008.49 and 8,280,601.38 is: 11,434,244.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173,803.28 : 18,191,008.49 = 8,280,601.38 : x
  2. Step 2: Convert to fraction form
    13,173,803.28/18,191,008.49 = 8,280,601.38/x
  3. Step 3: Cross multiply
    13,173,803.28x = 18,191,008.49 × 8,280,601.38
  4. Step 4: Simplify right side
    13,173,803.28x = 150,632,489,964,482.69
  5. Step 5: Solve for x
    x = 150,632,489,964,482.69/13,173,803.28
  6. Step 6: Final answer
    x = 11,434,244.67

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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.