Finding the Fourth Proportional to 19,739,612.80, 29,598,921.60 and 8,367,212.80
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Solution
The fourth proportional to 19,739,612.80, 29,598,921.60 and 8,367,212.80 is: 12,546,369.48
Step by Step Solution
- Step 1: Write the proportion equation
19,739,612.80 : 29,598,921.60 = 8,367,212.80 : x - Step 2: Convert to fraction form
19,739,612.80/29,598,921.60 = 8,367,212.80/x - Step 3: Cross multiply
19,739,612.80x = 29,598,921.60 × 8,367,212.80 - Step 4: Simplify right side
19,739,612.80x = 247,660,475,677,716.50 - Step 5: Solve for x
x = 247,660,475,677,716.50/19,739,612.80 - Step 6: Final answer
x = 12,546,369.48
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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.