Home / 13,479,927.20-20,219,890.80-3,895,618.40

Finding the Fourth Proportional to 13,479,927.20, 20,219,890.80 and 3,895,618.40

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Solution

The fourth proportional to 13,479,927.20, 20,219,890.80 and 3,895,618.40 is: 5,843,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,927.20 : 20,219,890.80 = 3,895,618.40 : x
  2. Step 2: Convert to fraction form
    13,479,927.20/20,219,890.80 = 3,895,618.40/x
  3. Step 3: Cross multiply
    13,479,927.20x = 20,219,890.80 × 3,895,618.40
  4. Step 4: Simplify right side
    13,479,927.20x = 78,768,978,646,470.72
  5. Step 5: Solve for x
    x = 78,768,978,646,470.72/13,479,927.20
  6. Step 6: Final answer
    x = 5,843,427.60

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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.