Home / 18,638,120.05-25,720,360.31-10,265,328.96

Finding the Fourth Proportional to 18,638,120.05, 25,720,360.31 and 10,265,328.96

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Solution

The fourth proportional to 18,638,120.05, 25,720,360.31 and 10,265,328.96 is: 14,166,018.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638,120.05 : 25,720,360.31 = 10,265,328.96 : x
  2. Step 2: Convert to fraction form
    18,638,120.05/25,720,360.31 = 10,265,328.96/x
  3. Step 3: Cross multiply
    18,638,120.05x = 25,720,360.31 × 10,265,328.96
  4. Step 4: Simplify right side
    18,638,120.05x = 264,027,959,481,089.56
  5. Step 5: Solve for x
    x = 264,027,959,481,089.56/18,638,120.05
  6. Step 6: Final answer
    x = 14,166,018.83

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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.