Finding the Fourth Proportional to 215,791,846.63, 323,607,414.12 and 77,579,739.70
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Solution
The fourth proportional to 215,791,846.63, 323,607,414.12 and 77,579,739.70 is: 116,340,720.67
Step by Step Solution
- Step 1: Write the proportion equation
215,791,846.63 : 323,607,414.12 = 77,579,739.70 : x - Step 2: Convert to fraction form
215,791,846.63/323,607,414.12 = 77,579,739.70/x - Step 3: Cross multiply
215,791,846.63x = 323,607,414.12 × 77,579,739.70 - Step 4: Simplify right side
215,791,846.63x = 25,105,378,952,419,704 - Step 5: Solve for x
x = 25,105,378,952,419,704/215,791,846.63 - Step 6: Final answer
x = 116,340,720.67
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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.