Finding the Fourth Proportional to 13,209,236.19, 18,230,738.49 and 8,055,587.16
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Solution
The fourth proportional to 13,209,236.19, 18,230,738.49 and 8,055,587.16 is: 11,117,925.43
Step by Step Solution
- Step 1: Write the proportion equation
13,209,236.19 : 18,230,738.49 = 8,055,587.16 : x - Step 2: Convert to fraction form
13,209,236.19/18,230,738.49 = 8,055,587.16/x - Step 3: Cross multiply
13,209,236.19x = 18,230,738.49 × 8,055,587.16 - Step 4: Simplify right side
13,209,236.19x = 146,859,302,897,361.78 - Step 5: Solve for x
x = 146,859,302,897,361.78/13,209,236.19 - Step 6: Final answer
x = 11,117,925.43
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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.