Finding the Fourth Proportional to 12,163,808.42, 16,696,641.09 and 10,756,313.54
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Solution
The fourth proportional to 12,163,808.42, 16,696,641.09 and 10,756,313.54 is: 14,764,644.46
Step by Step Solution
- Step 1: Write the proportion equation
12,163,808.42 : 16,696,641.09 = 10,756,313.54 : x - Step 2: Convert to fraction form
12,163,808.42/16,696,641.09 = 10,756,313.54/x - Step 3: Cross multiply
12,163,808.42x = 16,696,641.09 × 10,756,313.54 - Step 4: Simplify right side
12,163,808.42x = 179,594,306,601,996.56 - Step 5: Solve for x
x = 179,594,306,601,996.56/12,163,808.42 - Step 6: Final answer
x = 14,764,644.46
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.