Home / 28,828,256.76-39,782,998.26-15,775,518.78

Finding the Fourth Proportional to 28,828,256.76, 39,782,998.26 and 15,775,518.78

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Solution

The fourth proportional to 28,828,256.76, 39,782,998.26 and 15,775,518.78 is: 21,770,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828,256.76 : 39,782,998.26 = 15,775,518.78 : x
  2. Step 2: Convert to fraction form
    28,828,256.76/39,782,998.26 = 15,775,518.78/x
  3. Step 3: Cross multiply
    28,828,256.76x = 39,782,998.26 × 15,775,518.78
  4. Step 4: Simplify right side
    28,828,256.76x = 627,597,436,175,337.25
  5. Step 5: Solve for x
    x = 627,597,436,175,337.25/28,828,256.76
  6. Step 6: Final answer
    x = 21,770,218.07

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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.