Finding the Fourth Proportional to 76,555,101.77, 105,646,207.52 and 43,515,553.31
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Solution
The fourth proportional to 76,555,101.77, 105,646,207.52 and 43,515,553.31 is: 60,051,558.54
Step by Step Solution
- Step 1: Write the proportion equation
76,555,101.77 : 105,646,207.52 = 43,515,553.31 : x - Step 2: Convert to fraction form
76,555,101.77/105,646,207.52 = 43,515,553.31/x - Step 3: Cross multiply
76,555,101.77x = 105,646,207.52 × 43,515,553.31 - Step 4: Simplify right side
76,555,101.77x = 4,597,253,174,916,440 - Step 5: Solve for x
x = 4,597,253,174,916,440/76,555,101.77 - Step 6: Final answer
x = 60,051,558.54
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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.