Finding the Fourth Proportional to 18,076,512.90, 27,141,341.40 and 12,708,958.80
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Solution
The fourth proportional to 18,076,512.90, 27,141,341.40 and 12,708,958.80 is: 19,082,120.07
Step by Step Solution
- Step 1: Write the proportion equation
18,076,512.90 : 27,141,341.40 = 12,708,958.80 : x - Step 2: Convert to fraction form
18,076,512.90/27,141,341.40 = 12,708,958.80/x - Step 3: Cross multiply
18,076,512.90x = 27,141,341.40 × 12,708,958.80 - Step 4: Simplify right side
18,076,512.90x = 344,938,189,629,334.31 - Step 5: Solve for x
x = 344,938,189,629,334.31/18,076,512.90 - Step 6: Final answer
x = 19,082,120.07
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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.