Finding the Fourth Proportional to 68,239,109.40, 102,358,664.10 and 61,436,664.60
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Solution
The fourth proportional to 68,239,109.40, 102,358,664.10 and 61,436,664.60 is: 92,154,996.90
Step by Step Solution
- Step 1: Write the proportion equation
68,239,109.40 : 102,358,664.10 = 61,436,664.60 : x - Step 2: Convert to fraction form
68,239,109.40/102,358,664.10 = 61,436,664.60/x - Step 3: Cross multiply
68,239,109.40x = 102,358,664.10 × 61,436,664.60 - Step 4: Simplify right side
68,239,109.40x = 6,288,574,915,215,761 - Step 5: Solve for x
x = 6,288,574,915,215,761/68,239,109.40 - Step 6: Final answer
x = 92,154,996.90
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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.