Home / 18,640,213.22-25,710,243.42-12,442,134.92

Finding the Fourth Proportional to 18,640,213.22, 25,710,243.42 and 12,442,134.92

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Solution

The fourth proportional to 18,640,213.22, 25,710,243.42 and 12,442,134.92 is: 17,161,301.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640,213.22 : 25,710,243.42 = 12,442,134.92 : x
  2. Step 2: Convert to fraction form
    18,640,213.22/25,710,243.42 = 12,442,134.92/x
  3. Step 3: Cross multiply
    18,640,213.22x = 25,710,243.42 × 12,442,134.92
  4. Step 4: Simplify right side
    18,640,213.22x = 319,890,317,457,682.25
  5. Step 5: Solve for x
    x = 319,890,317,457,682.25/18,640,213.22
  6. Step 6: Final answer
    x = 17,161,301.41

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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.