Finding the Fourth Proportional to 427,468,165.79, 641,616,881.77 and 206,295,154.49
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Solution
The fourth proportional to 427,468,165.79, 641,616,881.77 and 206,295,154.49 is: 309,642,832.70
Step by Step Solution
- Step 1: Write the proportion equation
427,468,165.79 : 641,616,881.77 = 206,295,154.49 : x - Step 2: Convert to fraction form
427,468,165.79/641,616,881.77 = 206,295,154.49/x - Step 3: Cross multiply
427,468,165.79x = 641,616,881.77 × 206,295,154.49 - Step 4: Simplify right side
427,468,165.79x = 132,362,453,747,335,216 - Step 5: Solve for x
x = 132,362,453,747,335,216/427,468,165.79 - Step 6: Final answer
x = 309,642,832.70
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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.