Finding the Fourth Proportional to 15,180,845.05, 20,949,802.37 and 8,305,441.93
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Solution
The fourth proportional to 15,180,845.05, 20,949,802.37 and 8,305,441.93 is: 11,461,639.09
Step by Step Solution
- Step 1: Write the proportion equation
15,180,845.05 : 20,949,802.37 = 8,305,441.93 : x - Step 2: Convert to fraction form
15,180,845.05/20,949,802.37 = 8,305,441.93/x - Step 3: Cross multiply
15,180,845.05x = 20,949,802.37 × 8,305,441.93 - Step 4: Simplify right side
15,180,845.05x = 173,997,367,029,011.38 - Step 5: Solve for x
x = 173,997,367,029,011.38/15,180,845.05 - Step 6: Final answer
x = 11,461,639.09
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1.5x scale
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.