Finding the Fourth Proportional to 86,892,066.18, 119,911,129.92 and 47,736,379.44
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Solution
The fourth proportional to 86,892,066.18, 119,911,129.92 and 47,736,379.44 is: 65,876,246.80
Step by Step Solution
- Step 1: Write the proportion equation
86,892,066.18 : 119,911,129.92 = 47,736,379.44 : x - Step 2: Convert to fraction form
86,892,066.18/119,911,129.92 = 47,736,379.44/x - Step 3: Cross multiply
86,892,066.18x = 119,911,129.92 × 47,736,379.44 - Step 4: Simplify right side
86,892,066.18x = 5,724,123,196,940,257 - Step 5: Solve for x
x = 5,724,123,196,940,257/86,892,066.18 - Step 6: Final answer
x = 65,876,246.80
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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.