Home / 14,969,209.12-20,657,388.32-8,690,319.05

Finding the Fourth Proportional to 14,969,209.12, 20,657,388.32 and 8,690,319.05

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Solution

The fourth proportional to 14,969,209.12, 20,657,388.32 and 8,690,319.05 is: 11,992,570.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,969,209.12 : 20,657,388.32 = 8,690,319.05 : x
  2. Step 2: Convert to fraction form
    14,969,209.12/20,657,388.32 = 8,690,319.05/x
  3. Step 3: Cross multiply
    14,969,209.12x = 20,657,388.32 × 8,690,319.05
  4. Step 4: Simplify right side
    14,969,209.12x = 179,519,295,240,543.50
  5. Step 5: Solve for x
    x = 179,519,295,240,543.50/14,969,209.12
  6. Step 6: Final answer
    x = 11,992,570.47

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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.