Home / 20,809,847.84-28,717,651.46-11,518,063.28

Finding the Fourth Proportional to 20,809,847.84, 28,717,651.46 and 11,518,063.28

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Solution

The fourth proportional to 20,809,847.84, 28,717,651.46 and 11,518,063.28 is: 15,894,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,847.84 : 28,717,651.46 = 11,518,063.28 : x
  2. Step 2: Convert to fraction form
    20,809,847.84/28,717,651.46 = 11,518,063.28/x
  3. Step 3: Cross multiply
    20,809,847.84x = 28,717,651.46 × 11,518,063.28
  4. Step 4: Simplify right side
    20,809,847.84x = 330,771,726,625,676.12
  5. Step 5: Solve for x
    x = 330,771,726,625,676.12/20,809,847.84
  6. Step 6: Final answer
    x = 15,894,961.33

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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.