Home / 13,300,631.76-18,351,741.12-8,073,511.20

Finding the Fourth Proportional to 13,300,631.76, 18,351,741.12 and 8,073,511.20

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Solution

The fourth proportional to 13,300,631.76, 18,351,741.12 and 8,073,511.20 is: 11,139,545.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300,631.76 : 18,351,741.12 = 8,073,511.20 : x
  2. Step 2: Convert to fraction form
    13,300,631.76/18,351,741.12 = 8,073,511.20/x
  3. Step 3: Cross multiply
    13,300,631.76x = 18,351,741.12 × 8,073,511.20
  4. Step 4: Simplify right side
    13,300,631.76x = 148,162,987,471,820.56
  5. Step 5: Solve for x
    x = 148,162,987,471,820.56/13,300,631.76
  6. Step 6: Final answer
    x = 11,139,545.11

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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.