Home / 28,213,556.45-42,320,859.74-8,019,323.33

Finding the Fourth Proportional to 28,213,556.45, 42,320,859.74 and 8,019,323.33

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Solution

The fourth proportional to 28,213,556.45, 42,320,859.74 and 8,019,323.33 is: 12,029,134.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213,556.45 : 42,320,859.74 = 8,019,323.33 : x
  2. Step 2: Convert to fraction form
    28,213,556.45/42,320,859.74 = 8,019,323.33/x
  3. Step 3: Cross multiply
    28,213,556.45x = 42,320,859.74 × 8,019,323.33
  4. Step 4: Simplify right side
    28,213,556.45x = 339,384,657,606,938.81
  5. Step 5: Solve for x
    x = 339,384,657,606,938.81/28,213,556.45
  6. Step 6: Final answer
    x = 12,029,134.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.