Finding the Fourth Proportional to 68,256,557.60, 102,384,836.40 and 66,366,989.60
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Solution
The fourth proportional to 68,256,557.60, 102,384,836.40 and 66,366,989.60 is: 99,550,484.40
Step by Step Solution
- Step 1: Write the proportion equation
68,256,557.60 : 102,384,836.40 = 66,366,989.60 : x - Step 2: Convert to fraction form
68,256,557.60/102,384,836.40 = 66,366,989.60/x - Step 3: Cross multiply
68,256,557.60x = 102,384,836.40 × 66,366,989.60 - Step 4: Simplify right side
68,256,557.60x = 6,794,973,372,556,502 - Step 5: Solve for x
x = 6,794,973,372,556,502/68,256,557.60 - Step 6: Final answer
x = 99,550,484.40
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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.