Home / 12,880,560.64-17,775,212.50-7,079,936.80

Finding the Fourth Proportional to 12,880,560.64, 17,775,212.50 and 7,079,936.80

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Solution

The fourth proportional to 12,880,560.64, 17,775,212.50 and 7,079,936.80 is: 9,770,334.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880,560.64 : 17,775,212.50 = 7,079,936.80 : x
  2. Step 2: Convert to fraction form
    12,880,560.64/17,775,212.50 = 7,079,936.80/x
  3. Step 3: Cross multiply
    12,880,560.64x = 17,775,212.50 × 7,079,936.80
  4. Step 4: Simplify right side
    12,880,560.64x = 125,847,381,106,570
  5. Step 5: Solve for x
    x = 125,847,381,106,570/12,880,560.64
  6. Step 6: Final answer
    x = 9,770,334.12

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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.