Home / 12,520,662.75-17,278,213.50-7,014,269.79

Finding the Fourth Proportional to 12,520,662.75, 17,278,213.50 and 7,014,269.79

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Solution

The fourth proportional to 12,520,662.75, 17,278,213.50 and 7,014,269.79 is: 9,679,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520,662.75 : 17,278,213.50 = 7,014,269.79 : x
  2. Step 2: Convert to fraction form
    12,520,662.75/17,278,213.50 = 7,014,269.79/x
  3. Step 3: Cross multiply
    12,520,662.75x = 17,278,213.50 × 7,014,269.79
  4. Step 4: Simplify right side
    12,520,662.75x = 121,194,050,978,220.17
  5. Step 5: Solve for x
    x = 121,194,050,978,220.17/12,520,662.75
  6. Step 6: Final answer
    x = 9,679,523.63

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Double scale
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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.