Finding the Fourth Proportional to 13,310,309.80, 18,368,227.38 and 7,198,738.12
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Solution
The fourth proportional to 13,310,309.80, 18,368,227.38 and 7,198,738.12 is: 9,934,258.53
Step by Step Solution
- Step 1: Write the proportion equation
13,310,309.80 : 18,368,227.38 = 7,198,738.12 : x - Step 2: Convert to fraction form
13,310,309.80/18,368,227.38 = 7,198,738.12/x - Step 3: Cross multiply
13,310,309.80x = 18,368,227.38 × 7,198,738.12 - Step 4: Simplify right side
13,310,309.80x = 132,228,058,637,233.72 - Step 5: Solve for x
x = 132,228,058,637,233.72/13,310,309.80 - Step 6: Final answer
x = 9,934,258.53
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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.