Home / 13,333,771.52-18,400,609.92-7,222,181.12

Finding the Fourth Proportional to 13,333,771.52, 18,400,609.92 and 7,222,181.12

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Solution

The fourth proportional to 13,333,771.52, 18,400,609.92 and 7,222,181.12 is: 9,966,612.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333,771.52 : 18,400,609.92 = 7,222,181.12 : x
  2. Step 2: Convert to fraction form
    13,333,771.52/18,400,609.92 = 7,222,181.12/x
  3. Step 3: Cross multiply
    13,333,771.52x = 18,400,609.92 × 7,222,181.12
  4. Step 4: Simplify right side
    13,333,771.52x = 132,892,537,560,708.72
  5. Step 5: Solve for x
    x = 132,892,537,560,708.72/13,333,771.52
  6. Step 6: Final answer
    x = 9,966,612.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.