Finding the Fourth Proportional to 12,163,106.68, 16,777,789.41 and 8,033,145.91
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Solution
The fourth proportional to 12,163,106.68, 16,777,789.41 and 8,033,145.91 is: 11,080,921.50
Step by Step Solution
- Step 1: Write the proportion equation
12,163,106.68 : 16,777,789.41 = 8,033,145.91 : x - Step 2: Convert to fraction form
12,163,106.68/16,777,789.41 = 8,033,145.91/x - Step 3: Cross multiply
12,163,106.68x = 16,777,789.41 × 8,033,145.91 - Step 4: Simplify right side
12,163,106.68x = 134,778,430,377,782.81 - Step 5: Solve for x
x = 134,778,430,377,782.81/12,163,106.68 - Step 6: Final answer
x = 11,080,921.50
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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.