Finding the Fourth Proportional to 22,146,729.92, 30,562,571.79 and 12,357,586.70
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Solution
The fourth proportional to 22,146,729.92, 30,562,571.79 and 12,357,586.70 is: 17,053,516.80
Step by Step Solution
- Step 1: Write the proportion equation
22,146,729.92 : 30,562,571.79 = 12,357,586.70 : x - Step 2: Convert to fraction form
22,146,729.92/30,562,571.79 = 12,357,586.70/x - Step 3: Cross multiply
22,146,729.92x = 30,562,571.79 × 12,357,586.70 - Step 4: Simplify right side
22,146,729.92x = 377,679,630,669,899.19 - Step 5: Solve for x
x = 377,679,630,669,899.19/22,146,729.92 - Step 6: Final answer
x = 17,053,516.80
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1.5x scale
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.