Finding the Fourth Proportional to 20,594,549.22, 28,418,599.59 and 12,220,476.08
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Solution
The fourth proportional to 20,594,549.22, 28,418,599.59 and 12,220,476.08 is: 16,863,142.42
Step by Step Solution
- Step 1: Write the proportion equation
20,594,549.22 : 28,418,599.59 = 12,220,476.08 : x - Step 2: Convert to fraction form
20,594,549.22/28,418,599.59 = 12,220,476.08/x - Step 3: Cross multiply
20,594,549.22x = 28,418,599.59 × 12,220,476.08 - Step 4: Simplify right side
20,594,549.22x = 347,288,816,516,692.81 - Step 5: Solve for x
x = 347,288,816,516,692.81/20,594,549.22 - Step 6: Final answer
x = 16,863,142.42
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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.