Finding the Fourth Proportional to 641,579,715.48, 885,380,662.62 and 348,224,343.96
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Solution
The fourth proportional to 641,579,715.48, 885,380,662.62 and 348,224,343.96 is: 480,549,950.31
Step by Step Solution
- Step 1: Write the proportion equation
641,579,715.48 : 885,380,662.62 = 348,224,343.96 : x - Step 2: Convert to fraction form
641,579,715.48/885,380,662.62 = 348,224,343.96/x - Step 3: Cross multiply
641,579,715.48x = 885,380,662.62 × 348,224,343.96 - Step 4: Simplify right side
641,579,715.48x = 308,311,100,395,719,552 - Step 5: Solve for x
x = 308,311,100,395,719,552/641,579,715.48 - Step 6: Final answer
x = 480,549,950.31
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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.