Home / 13,560,834.38-18,714,101.99-7,980,314.31

Finding the Fourth Proportional to 13,560,834.38, 18,714,101.99 and 7,980,314.31

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Solution

The fourth proportional to 13,560,834.38, 18,714,101.99 and 7,980,314.31 is: 11,012,922.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560,834.38 : 18,714,101.99 = 7,980,314.31 : x
  2. Step 2: Convert to fraction form
    13,560,834.38/18,714,101.99 = 7,980,314.31/x
  3. Step 3: Cross multiply
    13,560,834.38x = 18,714,101.99 × 7,980,314.31
  4. Step 4: Simplify right side
    13,560,834.38x = 149,344,415,869,694.91
  5. Step 5: Solve for x
    x = 149,344,415,869,694.91/13,560,834.38
  6. Step 6: Final answer
    x = 11,012,922.34

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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.