Home / 28,860,719.65-39,827,300.74-15,629,789.03

Finding the Fourth Proportional to 28,860,719.65, 39,827,300.74 and 15,629,789.03

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Solution

The fourth proportional to 28,860,719.65, 39,827,300.74 and 15,629,789.03 is: 21,568,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860,719.65 : 39,827,300.74 = 15,629,789.03 : x
  2. Step 2: Convert to fraction form
    28,860,719.65/39,827,300.74 = 15,629,789.03/x
  3. Step 3: Cross multiply
    28,860,719.65x = 39,827,300.74 × 15,629,789.03
  4. Step 4: Simplify right side
    28,860,719.65x = 622,492,307,962,351.88
  5. Step 5: Solve for x
    x = 622,492,307,962,351.88/28,860,719.65
  6. Step 6: Final answer
    x = 21,568,842.20

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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.