Home / 13,664,564.10-20,482,849.35-7,981,863.30

Finding the Fourth Proportional to 13,664,564.10, 20,482,849.35 and 7,981,863.30

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Solution

The fourth proportional to 13,664,564.10, 20,482,849.35 and 7,981,863.30 is: 11,964,619.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664,564.10 : 20,482,849.35 = 7,981,863.30 : x
  2. Step 2: Convert to fraction form
    13,664,564.10/20,482,849.35 = 7,981,863.30/x
  3. Step 3: Cross multiply
    13,664,564.10x = 20,482,849.35 × 7,981,863.30
  4. Step 4: Simplify right side
    13,664,564.10x = 163,491,303,506,193.88
  5. Step 5: Solve for x
    x = 163,491,303,506,193.88/13,664,564.10
  6. Step 6: Final answer
    x = 11,964,619.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.