Finding the Fourth Proportional to 68,163,919.80, 102,245,879.70 and 22,105,699.80
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Solution
The fourth proportional to 68,163,919.80, 102,245,879.70 and 22,105,699.80 is: 33,158,549.70
Step by Step Solution
- Step 1: Write the proportion equation
68,163,919.80 : 102,245,879.70 = 22,105,699.80 : x - Step 2: Convert to fraction form
68,163,919.80/102,245,879.70 = 22,105,699.80/x - Step 3: Cross multiply
68,163,919.80x = 102,245,879.70 × 22,105,699.80 - Step 4: Simplify right side
68,163,919.80x = 2,260,216,722,435,114 - Step 5: Solve for x
x = 2,260,216,722,435,114/68,163,919.80 - Step 6: Final answer
x = 33,158,549.70
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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.