Finding the Fourth Proportional to 124,647,329.12, 172,022,220.52 and 68,891,550.17
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Solution
The fourth proportional to 124,647,329.12, 172,022,220.52 and 68,891,550.17 is: 95,075,261.69
Step by Step Solution
- Step 1: Write the proportion equation
124,647,329.12 : 172,022,220.52 = 68,891,550.17 : x - Step 2: Convert to fraction form
124,647,329.12/172,022,220.52 = 68,891,550.17/x - Step 3: Cross multiply
124,647,329.12x = 172,022,220.52 × 68,891,550.17 - Step 4: Simplify right side
124,647,329.12x = 11,850,877,434,276,046 - Step 5: Solve for x
x = 11,850,877,434,276,046/124,647,329.12 - Step 6: Final answer
x = 95,075,261.69
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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.