Finding the Fourth Proportional to 7,678,840.41, 10,596,729.99 and 4,194,178.46
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Solution
The fourth proportional to 7,678,840.41, 10,596,729.99 and 4,194,178.46 is: 5,787,928.16
Step by Step Solution
- Step 1: Write the proportion equation
7,678,840.41 : 10,596,729.99 = 4,194,178.46 : x - Step 2: Convert to fraction form
7,678,840.41/10,596,729.99 = 4,194,178.46/x - Step 3: Cross multiply
7,678,840.41x = 10,596,729.99 × 4,194,178.46 - Step 4: Simplify right side
7,678,840.41x = 44,444,576,633,238.54 - Step 5: Solve for x
x = 44,444,576,633,238.54/7,678,840.41 - Step 6: Final answer
x = 5,787,928.16
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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.