Finding the Fourth Proportional to 20,232,612.18, 27,921,483.21 and 11,531,594.41
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Solution
The fourth proportional to 20,232,612.18, 27,921,483.21 and 11,531,594.41 is: 15,913,872.95
Step by Step Solution
- Step 1: Write the proportion equation
20,232,612.18 : 27,921,483.21 = 11,531,594.41 : x - Step 2: Convert to fraction form
20,232,612.18/27,921,483.21 = 11,531,594.41/x - Step 3: Cross multiply
20,232,612.18x = 27,921,483.21 × 11,531,594.41 - Step 4: Simplify right side
20,232,612.18x = 321,979,219,703,344.88 - Step 5: Solve for x
x = 321,979,219,703,344.88/20,232,612.18 - Step 6: Final answer
x = 15,913,872.95
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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.