Home / 196,572,690.80-294,894,465.60-81,568,858.40

Finding the Fourth Proportional to 196,572,690.80, 294,894,465.60 and 81,568,858.40

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Solution

The fourth proportional to 196,572,690.80, 294,894,465.60 and 81,568,858.40 is: 122,367,989.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,572,690.80 : 294,894,465.60 = 81,568,858.40 : x
  2. Step 2: Convert to fraction form
    196,572,690.80/294,894,465.60 = 81,568,858.40/x
  3. Step 3: Cross multiply
    196,572,690.80x = 294,894,465.60 × 81,568,858.40
  4. Step 4: Simplify right side
    196,572,690.80x = 24,054,204,907,470,076
  5. Step 5: Solve for x
    x = 24,054,204,907,470,076/196,572,690.80
  6. Step 6: Final answer
    x = 122,367,989.21

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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.