Finding the Fourth Proportional to 232,578,843.14, 320,965,649.79 and 128,163,640.52
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Solution
The fourth proportional to 232,578,843.14, 320,965,649.79 and 128,163,640.52 is: 176,869,596.58
Step by Step Solution
- Step 1: Write the proportion equation
232,578,843.14 : 320,965,649.79 = 128,163,640.52 : x - Step 2: Convert to fraction form
232,578,843.14/320,965,649.79 = 128,163,640.52/x - Step 3: Cross multiply
232,578,843.14x = 320,965,649.79 × 128,163,640.52 - Step 4: Simplify right side
232,578,843.14x = 41,136,126,158,953,776 - Step 5: Solve for x
x = 41,136,126,158,953,776/232,578,843.14 - Step 6: Final answer
x = 176,869,596.58
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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.