Finding the Fourth Proportional to 13,345,263.62, 18,412,931.60 and 7,836,877.66
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Solution
The fourth proportional to 13,345,263.62, 18,412,931.60 and 7,836,877.66 is: 10,812,816.92
Step by Step Solution
- Step 1: Write the proportion equation
13,345,263.62 : 18,412,931.60 = 7,836,877.66 : x - Step 2: Convert to fraction form
13,345,263.62/18,412,931.60 = 7,836,877.66/x - Step 3: Cross multiply
13,345,263.62x = 18,412,931.60 × 7,836,877.66 - Step 4: Simplify right side
13,345,263.62x = 144,299,892,311,148.06 - Step 5: Solve for x
x = 144,299,892,311,148.06/13,345,263.62 - Step 6: Final answer
x = 10,812,816.92
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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.