Home / 9,261,036.78-12,780,230.76-5,186,655.78

Finding the Fourth Proportional to 9,261,036.78, 12,780,230.76 and 5,186,655.78

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Solution

The fourth proportional to 9,261,036.78, 12,780,230.76 and 5,186,655.78 is: 7,157,584.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261,036.78 : 12,780,230.76 = 5,186,655.78 : x
  2. Step 2: Convert to fraction form
    9,261,036.78/12,780,230.76 = 5,186,655.78/x
  3. Step 3: Cross multiply
    9,261,036.78x = 12,780,230.76 × 5,186,655.78
  4. Step 4: Simplify right side
    9,261,036.78x = 66,286,657,741,087.80
  5. Step 5: Solve for x
    x = 66,286,657,741,087.80/9,261,036.78
  6. Step 6: Final answer
    x = 7,157,584.98

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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.