Home / 18,214,719.40-27,313,784.70-8,112,140.20

Finding the Fourth Proportional to 18,214,719.40, 27,313,784.70 and 8,112,140.20

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Solution

The fourth proportional to 18,214,719.40, 27,313,784.70 and 8,112,140.20 is: 12,164,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,214,719.40 : 27,313,784.70 = 8,112,140.20 : x
  2. Step 2: Convert to fraction form
    18,214,719.40/27,313,784.70 = 8,112,140.20/x
  3. Step 3: Cross multiply
    18,214,719.40x = 27,313,784.70 × 8,112,140.20
  4. Step 4: Simplify right side
    18,214,719.40x = 221,573,250,879,014.94
  5. Step 5: Solve for x
    x = 221,573,250,879,014.94/18,214,719.40
  6. Step 6: Final answer
    x = 12,164,516.29

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1.5x scale

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.