Finding the Fourth Proportional to 12,881,090.80, 17,777,587.08 and 8,310,707.92
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Solution
The fourth proportional to 12,881,090.80, 17,777,587.08 and 8,310,707.92 is: 11,469,861.99
Step by Step Solution
- Step 1: Write the proportion equation
12,881,090.80 : 17,777,587.08 = 8,310,707.92 : x - Step 2: Convert to fraction form
12,881,090.80/17,777,587.08 = 8,310,707.92/x - Step 3: Cross multiply
12,881,090.80x = 17,777,587.08 × 8,310,707.92 - Step 4: Simplify right side
12,881,090.80x = 147,744,333,744,245.66 - Step 5: Solve for x
x = 147,744,333,744,245.66/12,881,090.80 - Step 6: Final answer
x = 11,469,861.99
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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.