Home / 21,873,236,853.78-30,189,922,815.36-13,297,841,333.28

Finding the Fourth Proportional to 21,873,236,853.78, 30,189,922,815.36 and 13,297,841,333.28

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Solution

The fourth proportional to 21,873,236,853.78, 30,189,922,815.36 and 13,297,841,333.28 is: 18,353,973,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,873,236,853.78 : 30,189,922,815.36 = 13,297,841,333.28 : x
  2. Step 2: Convert to fraction form
    21,873,236,853.78/30,189,922,815.36 = 13,297,841,333.28/x
  3. Step 3: Cross multiply
    21,873,236,853.78x = 30,189,922,815.36 × 13,297,841,333.28
  4. Step 4: Simplify right side
    21,873,236,853.78x = 401,460,803,462,627,131,392
  5. Step 5: Solve for x
    x = 401,460,803,462,627,131,392/21,873,236,853.78
  6. Step 6: Final answer
    x = 18,353,973,220.62

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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.