Finding the Fourth Proportional to 16,213,213.60, 22,374,068.88 and 8,969,921.44
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Solution
The fourth proportional to 16,213,213.60, 22,374,068.88 and 8,969,921.44 is: 12,378,399.81
Step by Step Solution
- Step 1: Write the proportion equation
16,213,213.60 : 22,374,068.88 = 8,969,921.44 : x - Step 2: Convert to fraction form
16,213,213.60/22,374,068.88 = 8,969,921.44/x - Step 3: Cross multiply
16,213,213.60x = 22,374,068.88 × 8,969,921.44 - Step 4: Simplify right side
16,213,213.60x = 200,693,640,146,748.78 - Step 5: Solve for x
x = 200,693,640,146,748.78/16,213,213.60 - Step 6: Final answer
x = 12,378,399.81
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1.5x scale
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.