Home / 20,585,051.88-28,388,775.78-12,850,806.12

Finding the Fourth Proportional to 20,585,051.88, 28,388,775.78 and 12,850,806.12

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Solution

The fourth proportional to 20,585,051.88, 28,388,775.78 and 12,850,806.12 is: 17,722,503.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585,051.88 : 28,388,775.78 = 12,850,806.12 : x
  2. Step 2: Convert to fraction form
    20,585,051.88/28,388,775.78 = 12,850,806.12/x
  3. Step 3: Cross multiply
    20,585,051.88x = 28,388,775.78 × 12,850,806.12
  4. Step 4: Simplify right side
    20,585,051.88x = 364,818,653,532,931.75
  5. Step 5: Solve for x
    x = 364,818,653,532,931.75/20,585,051.88
  6. Step 6: Final answer
    x = 17,722,503.48

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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.