Finding the Fourth Proportional to 10,752,181.80, 16,128,272.70 and 8,736,642.60
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Solution
The fourth proportional to 10,752,181.80, 16,128,272.70 and 8,736,642.60 is: 13,104,963.90
Step by Step Solution
- Step 1: Write the proportion equation
10,752,181.80 : 16,128,272.70 = 8,736,642.60 : x - Step 2: Convert to fraction form
10,752,181.80/16,128,272.70 = 8,736,642.60/x - Step 3: Cross multiply
10,752,181.80x = 16,128,272.70 × 8,736,642.60 - Step 4: Simplify right side
10,752,181.80x = 140,906,954,335,237 - Step 5: Solve for x
x = 140,906,954,335,237/10,752,181.80 - Step 6: Final answer
x = 13,104,963.90
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1.5x scale
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.