Home / 7,830,381.42-11,745,548.37-2,150,610.78

Finding the Fourth Proportional to 7,830,381.42, 11,745,548.37 and 2,150,610.78

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Solution

The fourth proportional to 7,830,381.42, 11,745,548.37 and 2,150,610.78 is: 3,225,909.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830,381.42 : 11,745,548.37 = 2,150,610.78 : x
  2. Step 2: Convert to fraction form
    7,830,381.42/11,745,548.37 = 2,150,610.78/x
  3. Step 3: Cross multiply
    7,830,381.42x = 11,745,548.37 × 2,150,610.78
  4. Step 4: Simplify right side
    7,830,381.42x = 25,260,102,941,533.43
  5. Step 5: Solve for x
    x = 25,260,102,941,533.43/7,830,381.42
  6. Step 6: Final answer
    x = 3,225,909.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.