Home / 13,320,286.55-18,381,995.26-7,208,715.05

Finding the Fourth Proportional to 13,320,286.55, 18,381,995.26 and 7,208,715.05

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Solution

The fourth proportional to 13,320,286.55, 18,381,995.26 and 7,208,715.05 is: 9,948,026.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,286.55 : 18,381,995.26 = 7,208,715.05 : x
  2. Step 2: Convert to fraction form
    13,320,286.55/18,381,995.26 = 7,208,715.05/x
  3. Step 3: Cross multiply
    13,320,286.55x = 18,381,995.26 × 7,208,715.05
  4. Step 4: Simplify right side
    13,320,286.55x = 132,510,565,879,340.39
  5. Step 5: Solve for x
    x = 132,510,565,879,340.39/13,320,286.55
  6. Step 6: Final answer
    x = 9,948,026.67

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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.