Finding the Fourth Proportional to 39,410,247.78, 54,385,050.84 and 21,768,834.18
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Solution
The fourth proportional to 39,410,247.78, 54,385,050.84 and 21,768,834.18 is: 30,040,388.49
Step by Step Solution
- Step 1: Write the proportion equation
39,410,247.78 : 54,385,050.84 = 21,768,834.18 : x - Step 2: Convert to fraction form
39,410,247.78/54,385,050.84 = 21,768,834.18/x - Step 3: Cross multiply
39,410,247.78x = 54,385,050.84 × 21,768,834.18 - Step 4: Simplify right side
39,410,247.78x = 1,183,899,153,606,829.75 - Step 5: Solve for x
x = 1,183,899,153,606,829.75/39,410,247.78 - Step 6: Final answer
x = 30,040,388.49
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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.