Finding the Fourth Proportional to 13,142,961.60, 19,693,245.60 and 7,446,244.80
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Solution
The fourth proportional to 13,142,961.60, 19,693,245.60 and 7,446,244.80 is: 11,157,357.99
Step by Step Solution
- Step 1: Write the proportion equation
13,142,961.60 : 19,693,245.60 = 7,446,244.80 : x - Step 2: Convert to fraction form
13,142,961.60/19,693,245.60 = 7,446,244.80/x - Step 3: Cross multiply
13,142,961.60x = 19,693,245.60 × 7,446,244.80 - Step 4: Simplify right side
13,142,961.60x = 146,640,727,644,122.88 - Step 5: Solve for x
x = 146,640,727,644,122.88/13,142,961.60 - Step 6: Final answer
x = 11,157,357.99
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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.