Home / 13,411,742-20,120,611.62-4,892,078.18

Finding the Fourth Proportional to 13,411,742, 20,120,611.62 and 4,892,078.18

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Solution

The fourth proportional to 13,411,742, 20,120,611.62 and 4,892,078.18 is: 7,339,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411,742 : 20,120,611.62 = 4,892,078.18 : x
  2. Step 2: Convert to fraction form
    13,411,742/20,120,611.62 = 4,892,078.18/x
  3. Step 3: Cross multiply
    13,411,742x = 20,120,611.62 × 4,892,078.18
  4. Step 4: Simplify right side
    13,411,742x = 98,431,605,074,456.45
  5. Step 5: Solve for x
    x = 98,431,605,074,456.45/13,411,742
  6. Step 6: Final answer
    x = 7,339,211.05

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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.