Home / 15,135,171.81-20,886,531.66-8,259,653.94

Finding the Fourth Proportional to 15,135,171.81, 20,886,531.66 and 8,259,653.94

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Solution

The fourth proportional to 15,135,171.81, 20,886,531.66 and 8,259,653.94 is: 11,398,319.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,135,171.81 : 20,886,531.66 = 8,259,653.94 : x
  2. Step 2: Convert to fraction form
    15,135,171.81/20,886,531.66 = 8,259,653.94/x
  3. Step 3: Cross multiply
    15,135,171.81x = 20,886,531.66 × 8,259,653.94
  4. Step 4: Simplify right side
    15,135,171.81x = 172,515,523,518,453.75
  5. Step 5: Solve for x
    x = 172,515,523,518,453.75/15,135,171.81
  6. Step 6: Final answer
    x = 11,398,319.47

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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.