Finding the Fourth Proportional to 41,128,936.80, 56,757,938.16 and 22,795,405.92
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Solution
The fourth proportional to 41,128,936.80, 56,757,938.16 and 22,795,405.92 is: 31,457,663.15
Step by Step Solution
- Step 1: Write the proportion equation
41,128,936.80 : 56,757,938.16 = 22,795,405.92 : x - Step 2: Convert to fraction form
41,128,936.80/56,757,938.16 = 22,795,405.92/x - Step 3: Cross multiply
41,128,936.80x = 56,757,938.16 × 22,795,405.92 - Step 4: Simplify right side
41,128,936.80x = 1,293,820,239,539,458 - Step 5: Solve for x
x = 1,293,820,239,539,458/41,128,936.80 - Step 6: Final answer
x = 31,457,663.15
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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.