Finding the Fourth Proportional to 9,986,543,415.36, 13,781,652,601.41 and 5,699,670,751.08
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Solution
The fourth proportional to 9,986,543,415.36, 13,781,652,601.41 and 5,699,670,751.08 is: 7,865,672,732.47
Step by Step Solution
- Step 1: Write the proportion equation
9,986,543,415.36 : 13,781,652,601.41 = 5,699,670,751.08 : x - Step 2: Convert to fraction form
9,986,543,415.36/13,781,652,601.41 = 5,699,670,751.08/x - Step 3: Cross multiply
9,986,543,415.36x = 13,781,652,601.41 × 5,699,670,751.08 - Step 4: Simplify right side
9,986,543,415.36x = 78,550,882,233,802,162,176 - Step 5: Solve for x
x = 78,550,882,233,802,162,176/9,986,543,415.36 - Step 6: Final answer
x = 7,865,672,732.47
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1.5x scale
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.