Home / 138,984,247.56-191,718,575.42-86,682,481.08

Finding the Fourth Proportional to 138,984,247.56, 191,718,575.42 and 86,682,481.08

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Solution

The fourth proportional to 138,984,247.56, 191,718,575.42 and 86,682,481.08 is: 119,572,124.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,984,247.56 : 191,718,575.42 = 86,682,481.08 : x
  2. Step 2: Convert to fraction form
    138,984,247.56/191,718,575.42 = 86,682,481.08/x
  3. Step 3: Cross multiply
    138,984,247.56x = 191,718,575.42 × 86,682,481.08
  4. Step 4: Simplify right side
    138,984,247.56x = 16,618,641,786,528,702
  5. Step 5: Solve for x
    x = 16,618,641,786,528,702/138,984,247.56
  6. Step 6: Final answer
    x = 119,572,124.74

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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.