Finding the Fourth Proportional to 135,769,314.07, 187,381,396.44 and 76,237,293.25
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Solution
The fourth proportional to 135,769,314.07, 187,381,396.44 and 76,237,293.25 is: 105,218,550.80
Step by Step Solution
- Step 1: Write the proportion equation
135,769,314.07 : 187,381,396.44 = 76,237,293.25 : x - Step 2: Convert to fraction form
135,769,314.07/187,381,396.44 = 76,237,293.25/x - Step 3: Cross multiply
135,769,314.07x = 187,381,396.44 × 76,237,293.25 - Step 4: Simplify right side
135,769,314.07x = 14,285,450,469,990,786 - Step 5: Solve for x
x = 14,285,450,469,990,786/135,769,314.07 - Step 6: Final answer
x = 105,218,550.80
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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.