Finding the Fourth Proportional to 122,925,377.79, 169,634,972.34 and 67,169,573.33
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Solution
The fourth proportional to 122,925,377.79, 169,634,972.34 and 67,169,573.33 is: 92,692,891.56
Step by Step Solution
- Step 1: Write the proportion equation
122,925,377.79 : 169,634,972.34 = 67,169,573.33 : x - Step 2: Convert to fraction form
122,925,377.79/169,634,972.34 = 67,169,573.33/x - Step 3: Cross multiply
122,925,377.79x = 169,634,972.34 × 67,169,573.33 - Step 4: Simplify right side
122,925,377.79x = 11,394,308,713,075,978 - Step 5: Solve for x
x = 11,394,308,713,075,978/122,925,377.79 - Step 6: Final answer
x = 92,692,891.56
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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.