Finding the Fourth Proportional to 77,168,382.02, 115,775,311.50 and 31,086,537.80
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Solution
The fourth proportional to 77,168,382.02, 115,775,311.50 and 31,086,537.80 is: 46,638,966.68
Step by Step Solution
- Step 1: Write the proportion equation
77,168,382.02 : 115,775,311.50 = 31,086,537.80 : x - Step 2: Convert to fraction form
77,168,382.02/115,775,311.50 = 31,086,537.80/x - Step 3: Cross multiply
77,168,382.02x = 115,775,311.50 × 31,086,537.80 - Step 4: Simplify right side
77,168,382.02x = 3,599,053,597,599,095 - Step 5: Solve for x
x = 3,599,053,597,599,095/77,168,382.02 - Step 6: Final answer
x = 46,638,966.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.