Finding the Fourth Proportional to 18,579,656.24, 27,878,614.68 and 8,351,742.52
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Solution
The fourth proportional to 18,579,656.24, 27,878,614.68 and 8,351,742.52 is: 12,531,717.95
Step by Step Solution
- Step 1: Write the proportion equation
18,579,656.24 : 27,878,614.68 = 8,351,742.52 : x - Step 2: Convert to fraction form
18,579,656.24/27,878,614.68 = 8,351,742.52/x - Step 3: Cross multiply
18,579,656.24x = 27,878,614.68 × 8,351,742.52 - Step 4: Simplify right side
18,579,656.24x = 232,835,011,621,652.19 - Step 5: Solve for x
x = 232,835,011,621,652.19/18,579,656.24 - Step 6: Final answer
x = 12,531,717.95
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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.