Finding the Fourth Proportional to 11,351,424.78, 15,664,961.93 and 6,194,786.31
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Solution
The fourth proportional to 11,351,424.78, 15,664,961.93 and 6,194,786.31 is: 8,548,802.78
Step by Step Solution
- Step 1: Write the proportion equation
11,351,424.78 : 15,664,961.93 = 6,194,786.31 : x - Step 2: Convert to fraction form
11,351,424.78/15,664,961.93 = 6,194,786.31/x - Step 3: Cross multiply
11,351,424.78x = 15,664,961.93 × 6,194,786.31 - Step 4: Simplify right side
11,351,424.78x = 97,041,091,679,661.25 - Step 5: Solve for x
x = 97,041,091,679,661.25/11,351,424.78 - Step 6: Final answer
x = 8,548,802.78
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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.