Finding the Fourth Proportional to 22,163,872.40, 30,583,812.84 and 12,869,625.68
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Solution
The fourth proportional to 22,163,872.40, 30,583,812.84 and 12,869,625.68 is: 17,758,729.88
Step by Step Solution
- Step 1: Write the proportion equation
22,163,872.40 : 30,583,812.84 = 12,869,625.68 : x - Step 2: Convert to fraction form
22,163,872.40/30,583,812.84 = 12,869,625.68/x - Step 3: Cross multiply
22,163,872.40x = 30,583,812.84 × 12,869,625.68 - Step 4: Simplify right side
22,163,872.40x = 393,602,223,117,977.75 - Step 5: Solve for x
x = 393,602,223,117,977.75/22,163,872.40 - Step 6: Final answer
x = 17,758,729.88
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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.