Finding the Fourth Proportional to 10,983,816.60, 16,478,349.30 and 5,299,366.20
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Solution
The fourth proportional to 10,983,816.60, 16,478,349.30 and 5,299,366.20 is: 7,950,315.50
Step by Step Solution
- Step 1: Write the proportion equation
10,983,816.60 : 16,478,349.30 = 5,299,366.20 : x - Step 2: Convert to fraction form
10,983,816.60/16,478,349.30 = 5,299,366.20/x - Step 3: Cross multiply
10,983,816.60x = 16,478,349.30 × 5,299,366.20 - Step 4: Simplify right side
10,983,816.60x = 87,324,807,312,213.67 - Step 5: Solve for x
x = 87,324,807,312,213.67/10,983,816.60 - Step 6: Final answer
x = 7,950,315.50
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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.