Finding the Fourth Proportional to 11,778,276.20, 16,253,923.38 and 6,621,660.68
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Solution
The fourth proportional to 11,778,276.20, 16,253,923.38 and 6,621,660.68 is: 9,137,836.77
Step by Step Solution
- Step 1: Write the proportion equation
11,778,276.20 : 16,253,923.38 = 6,621,660.68 : x - Step 2: Convert to fraction form
11,778,276.20/16,253,923.38 = 6,621,660.68/x - Step 3: Cross multiply
11,778,276.20x = 16,253,923.38 × 6,621,660.68 - Step 4: Simplify right side
11,778,276.20x = 107,627,965,341,078.70 - Step 5: Solve for x
x = 107,627,965,341,078.70/11,778,276.20 - Step 6: Final answer
x = 9,137,836.77
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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.