Home / 13,300,632.76-18,351,742.50-8,073,512.20

Finding the Fourth Proportional to 13,300,632.76, 18,351,742.50 and 8,073,512.20

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Solution

The fourth proportional to 13,300,632.76, 18,351,742.50 and 8,073,512.20 is: 11,139,546.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300,632.76 : 18,351,742.50 = 8,073,512.20 : x
  2. Step 2: Convert to fraction form
    13,300,632.76/18,351,742.50 = 8,073,512.20/x
  3. Step 3: Cross multiply
    13,300,632.76x = 18,351,742.50 × 8,073,512.20
  4. Step 4: Simplify right side
    13,300,632.76x = 148,163,016,965,008.50
  5. Step 5: Solve for x
    x = 148,163,016,965,008.50/13,300,632.76
  6. Step 6: Final answer
    x = 11,139,546.49

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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.