Home / 27,479,855.20-41,219,782.80-7,287,138.40

Finding the Fourth Proportional to 27,479,855.20, 41,219,782.80 and 7,287,138.40

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Solution

The fourth proportional to 27,479,855.20, 41,219,782.80 and 7,287,138.40 is: 10,930,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,479,855.20 : 41,219,782.80 = 7,287,138.40 : x
  2. Step 2: Convert to fraction form
    27,479,855.20/41,219,782.80 = 7,287,138.40/x
  3. Step 3: Cross multiply
    27,479,855.20x = 41,219,782.80 × 7,287,138.40
  4. Step 4: Simplify right side
    27,479,855.20x = 300,374,262,081,539.50
  5. Step 5: Solve for x
    x = 300,374,262,081,539.50/27,479,855.20
  6. Step 6: Final answer
    x = 10,930,707.60

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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.