Home / 20,348,425.23-28,080,820.39-11,181,658.47

Finding the Fourth Proportional to 20,348,425.23, 28,080,820.39 and 11,181,658.47

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Solution

The fourth proportional to 20,348,425.23, 28,080,820.39 and 11,181,658.47 is: 15,430,685.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,425.23 : 28,080,820.39 = 11,181,658.47 : x
  2. Step 2: Convert to fraction form
    20,348,425.23/28,080,820.39 = 11,181,658.47/x
  3. Step 3: Cross multiply
    20,348,425.23x = 28,080,820.39 × 11,181,658.47
  4. Step 4: Simplify right side
    20,348,425.23x = 313,990,143,102,483.94
  5. Step 5: Solve for x
    x = 313,990,143,102,483.94/20,348,425.23
  6. Step 6: Final answer
    x = 15,430,685.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.