Home / 28,660,911.33-39,550,266.04-15,783,855.33

Finding the Fourth Proportional to 28,660,911.33, 39,550,266.04 and 15,783,855.33

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Solution

The fourth proportional to 28,660,911.33, 39,550,266.04 and 15,783,855.33 is: 21,780,733.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660,911.33 : 39,550,266.04 = 15,783,855.33 : x
  2. Step 2: Convert to fraction form
    28,660,911.33/39,550,266.04 = 15,783,855.33/x
  3. Step 3: Cross multiply
    28,660,911.33x = 39,550,266.04 × 15,783,855.33
  4. Step 4: Simplify right side
    28,660,911.33x = 624,255,677,438,372
  5. Step 5: Solve for x
    x = 624,255,677,438,372/28,660,911.33
  6. Step 6: Final answer
    x = 21,780,733.71

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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.