Finding the Fourth Proportional to 18,400,652.92, 25,393,074.51 and 10,141,013.08
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Solution
The fourth proportional to 18,400,652.92, 25,393,074.51 and 10,141,013.08 is: 13,994,693.66
Step by Step Solution
- Step 1: Write the proportion equation
18,400,652.92 : 25,393,074.51 = 10,141,013.08 : x - Step 2: Convert to fraction form
18,400,652.92/25,393,074.51 = 10,141,013.08/x - Step 3: Cross multiply
18,400,652.92x = 25,393,074.51 × 10,141,013.08 - Step 4: Simplify right side
18,400,652.92x = 257,511,500,747,324.59 - Step 5: Solve for x
x = 257,511,500,747,324.59/18,400,652.92 - Step 6: Final answer
x = 13,994,693.66
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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.