Finding the Fourth Proportional to 16,621,805.40, 24,918,711.30 and 8,643,629.40
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Solution
The fourth proportional to 16,621,805.40, 24,918,711.30 and 8,643,629.40 is: 12,958,165.52
Step by Step Solution
- Step 1: Write the proportion equation
16,621,805.40 : 24,918,711.30 = 8,643,629.40 : x - Step 2: Convert to fraction form
16,621,805.40/24,918,711.30 = 8,643,629.40/x - Step 3: Cross multiply
16,621,805.40x = 24,918,711.30 × 8,643,629.40 - Step 4: Simplify right side
16,621,805.40x = 215,388,105,602,792.25 - Step 5: Solve for x
x = 215,388,105,602,792.25/16,621,805.40 - Step 6: Final answer
x = 12,958,165.52
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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.