Home / 20,712,231.77-28,595,140.43-18,414,044.69

Finding the Fourth Proportional to 20,712,231.77, 28,595,140.43 and 18,414,044.69

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Solution

The fourth proportional to 20,712,231.77, 28,595,140.43 and 18,414,044.69 is: 25,422,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712,231.77 : 28,595,140.43 = 18,414,044.69 : x
  2. Step 2: Convert to fraction form
    20,712,231.77/28,595,140.43 = 18,414,044.69/x
  3. Step 3: Cross multiply
    20,712,231.77x = 28,595,140.43 × 18,414,044.69
  4. Step 4: Simplify right side
    20,712,231.77x = 526,552,193,559,799.88
  5. Step 5: Solve for x
    x = 526,552,193,559,799.88/20,712,231.77
  6. Step 6: Final answer
    x = 25,422,281.84

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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.