Home / 18,855,682.90-28,271,949.21-7,327,689.85

Finding the Fourth Proportional to 18,855,682.90, 28,271,949.21 and 7,327,689.85

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Solution

The fourth proportional to 18,855,682.90, 28,271,949.21 and 7,327,689.85 is: 10,987,036.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855,682.90 : 28,271,949.21 = 7,327,689.85 : x
  2. Step 2: Convert to fraction form
    18,855,682.90/28,271,949.21 = 7,327,689.85/x
  3. Step 3: Cross multiply
    18,855,682.90x = 28,271,949.21 × 7,327,689.85
  4. Step 4: Simplify right side
    18,855,682.90x = 207,168,075,265,832.50
  5. Step 5: Solve for x
    x = 207,168,075,265,832.50/18,855,682.90
  6. Step 6: Final answer
    x = 10,987,036.45

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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.