Finding the Fourth Proportional to 18,145,868.40, 27,218,802.60 and 16,466,252.40
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Solution
The fourth proportional to 18,145,868.40, 27,218,802.60 and 16,466,252.40 is: 24,699,378.60
Step by Step Solution
- Step 1: Write the proportion equation
18,145,868.40 : 27,218,802.60 = 16,466,252.40 : x - Step 2: Convert to fraction form
18,145,868.40/27,218,802.60 = 16,466,252.40/x - Step 3: Cross multiply
18,145,868.40x = 27,218,802.60 × 16,466,252.40 - Step 4: Simplify right side
18,145,868.40x = 448,191,673,637,376.25 - Step 5: Solve for x
x = 448,191,673,637,376.25/18,145,868.40 - Step 6: Final answer
x = 24,699,378.60
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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.