Home / 18,855,675.90-28,271,938.71-7,327,682.85

Finding the Fourth Proportional to 18,855,675.90, 28,271,938.71 and 7,327,682.85

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Solution

The fourth proportional to 18,855,675.90, 28,271,938.71 and 7,327,682.85 is: 10,987,025.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855,675.90 : 28,271,938.71 = 7,327,682.85 : x
  2. Step 2: Convert to fraction form
    18,855,675.90/28,271,938.71 = 7,327,682.85/x
  3. Step 3: Cross multiply
    18,855,675.90x = 28,271,938.71 × 7,327,682.85
  4. Step 4: Simplify right side
    18,855,675.90x = 207,167,800,421,518.12
  5. Step 5: Solve for x
    x = 207,167,800,421,518.12/18,855,675.90
  6. Step 6: Final answer
    x = 10,987,025.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.