Finding the Fourth Proportional to 122,175,367.97, 168,605,333.60 and 66,424,539.60
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Solution
The fourth proportional to 122,175,367.97, 168,605,333.60 and 66,424,539.60 is: 91,667,672.83
Step by Step Solution
- Step 1: Write the proportion equation
122,175,367.97 : 168,605,333.60 = 66,424,539.60 : x - Step 2: Convert to fraction form
122,175,367.97/168,605,333.60 = 66,424,539.60/x - Step 3: Cross multiply
122,175,367.97x = 168,605,333.60 × 66,424,539.60 - Step 4: Simplify right side
122,175,367.97x = 11,199,531,658,152,288 - Step 5: Solve for x
x = 11,199,531,658,152,288/122,175,367.97 - Step 6: Final answer
x = 91,667,672.83
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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.