Finding the Fourth Proportional to 11,839,728.42, 16,338,765.15 and 6,407,220.42
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Solution
The fourth proportional to 11,839,728.42, 16,338,765.15 and 6,407,220.42 is: 8,841,931.67
Step by Step Solution
- Step 1: Write the proportion equation
11,839,728.42 : 16,338,765.15 = 6,407,220.42 : x - Step 2: Convert to fraction form
11,839,728.42/16,338,765.15 = 6,407,220.42/x - Step 3: Cross multiply
11,839,728.42x = 16,338,765.15 × 6,407,220.42 - Step 4: Simplify right side
11,839,728.42x = 104,686,069,706,664.36 - Step 5: Solve for x
x = 104,686,069,706,664.36/11,839,728.42 - Step 6: Final answer
x = 8,841,931.67
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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.