Home / 5,515,889.76-8,271,786.96-1,920,733.92

Finding the Fourth Proportional to 5,515,889.76, 8,271,786.96 and 1,920,733.92

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Solution

The fourth proportional to 5,515,889.76, 8,271,786.96 and 1,920,733.92 is: 2,880,387.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515,889.76 : 8,271,786.96 = 1,920,733.92 : x
  2. Step 2: Convert to fraction form
    5,515,889.76/8,271,786.96 = 1,920,733.92/x
  3. Step 3: Cross multiply
    5,515,889.76x = 8,271,786.96 × 1,920,733.92
  4. Step 4: Simplify right side
    5,515,889.76x = 15,887,901,793,085.68
  5. Step 5: Solve for x
    x = 15,887,901,793,085.68/5,515,889.76
  6. Step 6: Final answer
    x = 2,880,387.84

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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.