Home / 19,211,721-26,512,384.32-10,509,706.77

Finding the Fourth Proportional to 19,211,721, 26,512,384.32 and 10,509,706.77

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Solution

The fourth proportional to 19,211,721, 26,512,384.32 and 10,509,706.77 is: 14,503,509.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211,721 : 26,512,384.32 = 10,509,706.77 : x
  2. Step 2: Convert to fraction form
    19,211,721/26,512,384.32 = 10,509,706.77/x
  3. Step 3: Cross multiply
    19,211,721x = 26,512,384.32 × 10,509,706.77
  4. Step 4: Simplify right side
    19,211,721x = 278,637,384,976,745.84
  5. Step 5: Solve for x
    x = 278,637,384,976,745.84/19,211,721
  6. Step 6: Final answer
    x = 14,503,509.86

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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.