Home / 12,899,570,791.11-17,800,272,285.75-7,183,423,281.57

Finding the Fourth Proportional to 12,899,570,791.11, 17,800,272,285.75 and 7,183,423,281.57

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Solution

The fourth proportional to 12,899,570,791.11, 17,800,272,285.75 and 7,183,423,281.57 is: 9,912,491,851.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,899,570,791.11 : 17,800,272,285.75 = 7,183,423,281.57 : x
  2. Step 2: Convert to fraction form
    12,899,570,791.11/17,800,272,285.75 = 7,183,423,281.57/x
  3. Step 3: Cross multiply
    12,899,570,791.11x = 17,800,272,285.75 × 7,183,423,281.57
  4. Step 4: Simplify right side
    12,899,570,791.11x = 127,866,890,355,741,786,112
  5. Step 5: Solve for x
    x = 127,866,890,355,741,786,112/12,899,570,791.11
  6. Step 6: Final answer
    x = 9,912,491,851.58

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Double scale
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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.