Finding the Fourth Proportional to 18,116,783.98, 27,192,201.92 and 9,487,078.52
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Solution
The fourth proportional to 18,116,783.98, 27,192,201.92 and 9,487,078.52 is: 14,239,533.63
Step by Step Solution
- Step 1: Write the proportion equation
18,116,783.98 : 27,192,201.92 = 9,487,078.52 : x - Step 2: Convert to fraction form
18,116,783.98/27,192,201.92 = 9,487,078.52/x - Step 3: Cross multiply
18,116,783.98x = 27,192,201.92 × 9,487,078.52 - Step 4: Simplify right side
18,116,783.98x = 257,974,554,746,734.75 - Step 5: Solve for x
x = 257,974,554,746,734.75/18,116,783.98 - Step 6: Final answer
x = 14,239,533.63
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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.