Finding the Fourth Proportional to 20,208,705.36, 30,312,622.64 and 5,635,236.66
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Solution
The fourth proportional to 20,208,705.36, 30,312,622.64 and 5,635,236.66 is: 8,452,733.58
Step by Step Solution
- Step 1: Write the proportion equation
20,208,705.36 : 30,312,622.64 = 5,635,236.66 : x - Step 2: Convert to fraction form
20,208,705.36/30,312,622.64 = 5,635,236.66/x - Step 3: Cross multiply
20,208,705.36x = 30,312,622.64 × 5,635,236.66 - Step 4: Simplify right side
20,208,705.36x = 170,818,802,361,674 - Step 5: Solve for x
x = 170,818,802,361,674/20,208,705.36 - Step 6: Final answer
x = 8,452,733.58
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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.