Home / 196,992,212.80-295,488,319.20-81,938,516.80

Finding the Fourth Proportional to 196,992,212.80, 295,488,319.20 and 81,938,516.80

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Solution

The fourth proportional to 196,992,212.80, 295,488,319.20 and 81,938,516.80 is: 122,907,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,992,212.80 : 295,488,319.20 = 81,938,516.80 : x
  2. Step 2: Convert to fraction form
    196,992,212.80/295,488,319.20 = 81,938,516.80/x
  3. Step 3: Cross multiply
    196,992,212.80x = 295,488,319.20 × 81,938,516.80
  4. Step 4: Simplify right side
    196,992,212.80x = 24,211,874,606,972,960
  5. Step 5: Solve for x
    x = 24,211,874,606,972,960/196,992,212.80
  6. Step 6: Final answer
    x = 122,907,775.20

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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.