Home / 21,801,257.92-30,086,418-12,510,529.28

Finding the Fourth Proportional to 21,801,257.92, 30,086,418 and 12,510,529.28

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Solution

The fourth proportional to 21,801,257.92, 30,086,418 and 12,510,529.28 is: 17,264,921.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,801,257.92 : 30,086,418 = 12,510,529.28 : x
  2. Step 2: Convert to fraction form
    21,801,257.92/30,086,418 = 12,510,529.28/x
  3. Step 3: Cross multiply
    21,801,257.92x = 30,086,418 × 12,510,529.28
  4. Step 4: Simplify right side
    21,801,257.92x = 376,397,013,319,319
  5. Step 5: Solve for x
    x = 376,397,013,319,319/21,801,257.92
  6. Step 6: Final answer
    x = 17,264,921.81

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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.