Home / 15,179,081.94-20,947,070.41-8,209,767.22

Finding the Fourth Proportional to 15,179,081.94, 20,947,070.41 and 8,209,767.22

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Solution

The fourth proportional to 15,179,081.94, 20,947,070.41 and 8,209,767.22 is: 11,329,444.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,179,081.94 : 20,947,070.41 = 8,209,767.22 : x
  2. Step 2: Convert to fraction form
    15,179,081.94/20,947,070.41 = 8,209,767.22/x
  3. Step 3: Cross multiply
    15,179,081.94x = 20,947,070.41 × 8,209,767.22
  4. Step 4: Simplify right side
    15,179,081.94x = 171,970,571,934,157.88
  5. Step 5: Solve for x
    x = 171,970,571,934,157.88/15,179,081.94
  6. Step 6: Final answer
    x = 11,329,444.86

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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.