Finding the Fourth Proportional to 86,317,675.44, 129,364,909.98 and 64,581,738.54
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Solution
The fourth proportional to 86,317,675.44, 129,364,909.98 and 64,581,738.54 is: 96,789,107.79
Step by Step Solution
- Step 1: Write the proportion equation
86,317,675.44 : 129,364,909.98 = 64,581,738.54 : x - Step 2: Convert to fraction form
86,317,675.44/129,364,909.98 = 64,581,738.54/x - Step 3: Cross multiply
86,317,675.44x = 129,364,909.98 × 64,581,738.54 - Step 4: Simplify right side
86,317,675.44x = 8,354,610,792,578,997 - Step 5: Solve for x
x = 8,354,610,792,578,997/86,317,675.44 - Step 6: Final answer
x = 96,789,107.79
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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.