Home / 11,920,185-17,882,942.88-4,347,150.78

Finding the Fourth Proportional to 11,920,185, 17,882,942.88 and 4,347,150.78

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Solution

The fourth proportional to 11,920,185, 17,882,942.88 and 4,347,150.78 is: 6,521,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,920,185 : 17,882,942.88 = 4,347,150.78 : x
  2. Step 2: Convert to fraction form
    11,920,185/17,882,942.88 = 4,347,150.78/x
  3. Step 3: Cross multiply
    11,920,185x = 17,882,942.88 × 4,347,150.78
  4. Step 4: Simplify right side
    11,920,185x = 77,739,849,089,487.45
  5. Step 5: Solve for x
    x = 77,739,849,089,487.45/11,920,185
  6. Step 6: Final answer
    x = 6,521,698.20

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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.