Home / 28,792,175.28-39,733,204.80-15,739,492.56

Finding the Fourth Proportional to 28,792,175.28, 39,733,204.80 and 15,739,492.56

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Solution

The fourth proportional to 28,792,175.28, 39,733,204.80 and 15,739,492.56 is: 21,720,501.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,792,175.28 : 39,733,204.80 = 15,739,492.56 : x
  2. Step 2: Convert to fraction form
    28,792,175.28/39,733,204.80 = 15,739,492.56/x
  3. Step 3: Cross multiply
    28,792,175.28x = 39,733,204.80 × 15,739,492.56
  4. Step 4: Simplify right side
    28,792,175.28x = 625,380,481,334,556.25
  5. Step 5: Solve for x
    x = 625,380,481,334,556.25/28,792,175.28
  6. Step 6: Final answer
    x = 21,720,501.33

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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.