Home / 20,883,519,772.47-28,819,260,394.94-11,368,143,758.12

Finding the Fourth Proportional to 20,883,519,772.47, 28,819,260,394.94 and 11,368,143,758.12

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Solution

The fourth proportional to 20,883,519,772.47, 28,819,260,394.94 and 11,368,143,758.12 is: 15,688,040,078.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883,519,772.47 : 28,819,260,394.94 = 11,368,143,758.12 : x
  2. Step 2: Convert to fraction form
    20,883,519,772.47/28,819,260,394.94 = 11,368,143,758.12/x
  3. Step 3: Cross multiply
    20,883,519,772.47x = 28,819,260,394.94 × 11,368,143,758.12
  4. Step 4: Simplify right side
    20,883,519,772.47x = 327,621,495,172,372,103,168
  5. Step 5: Solve for x
    x = 327,621,495,172,372,103,168/20,883,519,772.47
  6. Step 6: Final answer
    x = 15,688,040,078.58

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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.