Home / 21,888,672,963.45-30,206,413,199.82-11,864,174,601.21

Finding the Fourth Proportional to 21,888,672,963.45, 30,206,413,199.82 and 11,864,174,601.21

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Solution

The fourth proportional to 21,888,672,963.45, 30,206,413,199.82 and 11,864,174,601.21 is: 16,372,585,075.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,888,672,963.45 : 30,206,413,199.82 = 11,864,174,601.21 : x
  2. Step 2: Convert to fraction form
    21,888,672,963.45/30,206,413,199.82 = 11,864,174,601.21/x
  3. Step 3: Cross multiply
    21,888,672,963.45x = 30,206,413,199.82 × 11,864,174,601.21
  4. Step 4: Simplify right side
    21,888,672,963.45x = 358,374,160,278,958,899,200
  5. Step 5: Solve for x
    x = 358,374,160,278,958,899,200/21,888,672,963.45
  6. Step 6: Final answer
    x = 16,372,585,075.28

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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.