Home / 13,560,834.93-18,714,102.76-7,980,314.87

Finding the Fourth Proportional to 13,560,834.93, 18,714,102.76 and 7,980,314.87

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Solution

The fourth proportional to 13,560,834.93, 18,714,102.76 and 7,980,314.87 is: 11,012,923.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560,834.93 : 18,714,102.76 = 7,980,314.87 : x
  2. Step 2: Convert to fraction form
    13,560,834.93/18,714,102.76 = 7,980,314.87/x
  3. Step 3: Cross multiply
    13,560,834.93x = 18,714,102.76 × 7,980,314.87
  4. Step 4: Simplify right side
    13,560,834.93x = 149,344,432,546,207.41
  5. Step 5: Solve for x
    x = 149,344,432,546,207.41/13,560,834.93
  6. Step 6: Final answer
    x = 11,012,923.12

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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.