Finding the Fourth Proportional to 13,305,846.40, 19,929,278.40 and 10,304,297.60
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Solution
The fourth proportional to 13,305,846.40, 19,929,278.40 and 10,304,297.60 is: 15,433,607.86
Step by Step Solution
- Step 1: Write the proportion equation
13,305,846.40 : 19,929,278.40 = 10,304,297.60 : x - Step 2: Convert to fraction form
13,305,846.40/19,929,278.40 = 10,304,297.60/x - Step 3: Cross multiply
13,305,846.40x = 19,929,278.40 × 10,304,297.60 - Step 4: Simplify right side
13,305,846.40x = 205,357,215,586,851.81 - Step 5: Solve for x
x = 205,357,215,586,851.81/13,305,846.40 - Step 6: Final answer
x = 15,433,607.86
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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.