Finding the Fourth Proportional to 138,582,530.91, 191,240,879.72 and 76,699,152.99
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Solution
The fourth proportional to 138,582,530.91, 191,240,879.72 and 76,699,152.99 is: 105,843,163.60
Step by Step Solution
- Step 1: Write the proportion equation
138,582,530.91 : 191,240,879.72 = 76,699,152.99 : x - Step 2: Convert to fraction form
138,582,530.91/191,240,879.72 = 76,699,152.99/x - Step 3: Cross multiply
138,582,530.91x = 191,240,879.72 × 76,699,152.99 - Step 4: Simplify right side
138,582,530.91x = 14,668,013,491,202,972 - Step 5: Solve for x
x = 14,668,013,491,202,972/138,582,530.91 - Step 6: Final answer
x = 105,843,163.60
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.