Finding the Fourth Proportional to 16,216,921.80, 24,325,382.70 and 5,430,637.80
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Solution
The fourth proportional to 16,216,921.80, 24,325,382.70 and 5,430,637.80 is: 8,145,956.70
Step by Step Solution
- Step 1: Write the proportion equation
16,216,921.80 : 24,325,382.70 = 5,430,637.80 : x - Step 2: Convert to fraction form
16,216,921.80/24,325,382.70 = 5,430,637.80/x - Step 3: Cross multiply
16,216,921.80x = 24,325,382.70 × 5,430,637.80 - Step 4: Simplify right side
16,216,921.80x = 132,102,342,790,086.05 - Step 5: Solve for x
x = 132,102,342,790,086.05/16,216,921.80 - Step 6: Final answer
x = 8,145,956.70
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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.