Home / 11,881,163,215.89-16,379,621,907.41-9,478,002,251.21

Finding the Fourth Proportional to 11,881,163,215.89, 16,379,621,907.41 and 9,478,002,251.21

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Solution

The fourth proportional to 11,881,163,215.89, 16,379,621,907.41 and 9,478,002,251.21 is: 13,066,573,574.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881,163,215.89 : 16,379,621,907.41 = 9,478,002,251.21 : x
  2. Step 2: Convert to fraction form
    11,881,163,215.89/16,379,621,907.41 = 9,478,002,251.21/x
  3. Step 3: Cross multiply
    11,881,163,215.89x = 16,379,621,907.41 × 9,478,002,251.21
  4. Step 4: Simplify right side
    11,881,163,215.89x = 155,246,093,312,337,674,240
  5. Step 5: Solve for x
    x = 155,246,093,312,337,674,240/11,881,163,215.89
  6. Step 6: Final answer
    x = 13,066,573,574.61

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Double scale
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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.