Finding the Fourth Proportional to 10,211,035.20, 15,295,557.60 and 7,019,764.80
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Solution
The fourth proportional to 10,211,035.20, 15,295,557.60 and 7,019,764.80 is: 10,515,213.66
Step by Step Solution
- Step 1: Write the proportion equation
10,211,035.20 : 15,295,557.60 = 7,019,764.80 : x - Step 2: Convert to fraction form
10,211,035.20/15,295,557.60 = 7,019,764.80/x - Step 3: Cross multiply
10,211,035.20x = 15,295,557.60 × 7,019,764.80 - Step 4: Simplify right side
10,211,035.20x = 107,371,216,836,852.47 - Step 5: Solve for x
x = 107,371,216,836,852.47/10,211,035.20 - Step 6: Final answer
x = 10,515,213.66
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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.