Home / 20,375,931.97-28,118,934.34-11,083,582.30

Finding the Fourth Proportional to 20,375,931.97, 28,118,934.34 and 11,083,582.30

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Solution

The fourth proportional to 20,375,931.97, 28,118,934.34 and 11,083,582.30 is: 15,295,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375,931.97 : 28,118,934.34 = 11,083,582.30 : x
  2. Step 2: Convert to fraction form
    20,375,931.97/28,118,934.34 = 11,083,582.30/x
  3. Step 3: Cross multiply
    20,375,931.97x = 28,118,934.34 × 11,083,582.30
  4. Step 4: Simplify right side
    20,375,931.97x = 311,658,522,900,402.88
  5. Step 5: Solve for x
    x = 311,658,522,900,402.88/20,375,931.97
  6. Step 6: Final answer
    x = 15,295,424.20

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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.