Finding the Fourth Proportional to 77,278,539.70, 115,917,809.55 and 41,446,731.70
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Solution
The fourth proportional to 77,278,539.70, 115,917,809.55 and 41,446,731.70 is: 62,170,097.55
Step by Step Solution
- Step 1: Write the proportion equation
77,278,539.70 : 115,917,809.55 = 41,446,731.70 : x - Step 2: Convert to fraction form
77,278,539.70/115,917,809.55 = 41,446,731.70/x - Step 3: Cross multiply
77,278,539.70x = 115,917,809.55 × 41,446,731.70 - Step 4: Simplify right side
77,278,539.70x = 4,804,414,351,670,548 - Step 5: Solve for x
x = 4,804,414,351,670,548/77,278,539.70 - Step 6: Final answer
x = 62,170,097.55
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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.