Home / 28,069,556.20-42,120,080.70-11,892,754.60

Finding the Fourth Proportional to 28,069,556.20, 42,120,080.70 and 11,892,754.60

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Solution

The fourth proportional to 28,069,556.20, 42,120,080.70 and 11,892,754.60 is: 17,845,803.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069,556.20 : 42,120,080.70 = 11,892,754.60 : x
  2. Step 2: Convert to fraction form
    28,069,556.20/42,120,080.70 = 11,892,754.60/x
  3. Step 3: Cross multiply
    28,069,556.20x = 42,120,080.70 × 11,892,754.60
  4. Step 4: Simplify right side
    28,069,556.20x = 500,923,783,497,296.25
  5. Step 5: Solve for x
    x = 500,923,783,497,296.25/28,069,556.20
  6. Step 6: Final answer
    x = 17,845,803.47

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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.