Finding the Fourth Proportional to 202,723,620.02, 279,989,542.32 and 137,420,149.94
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Solution
The fourth proportional to 202,723,620.02, 279,989,542.32 and 137,420,149.94 is: 189,796,358.63
Step by Step Solution
- Step 1: Write the proportion equation
202,723,620.02 : 279,989,542.32 = 137,420,149.94 : x - Step 2: Convert to fraction form
202,723,620.02/279,989,542.32 = 137,420,149.94/x - Step 3: Cross multiply
202,723,620.02x = 279,989,542.32 × 137,420,149.94 - Step 4: Simplify right side
202,723,620.02x = 38,476,204,887,246,376 - Step 5: Solve for x
x = 38,476,204,887,246,376/202,723,620.02 - Step 6: Final answer
x = 189,796,358.63
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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.