Finding the Fourth Proportional to 117,805,249.82, 162,582,727.86 and 87,984,125.08
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Solution
The fourth proportional to 117,805,249.82, 162,582,727.86 and 87,984,125.08 is: 121,426,668.90
Step by Step Solution
- Step 1: Write the proportion equation
117,805,249.82 : 162,582,727.86 = 87,984,125.08 : x - Step 2: Convert to fraction form
117,805,249.82/162,582,727.86 = 87,984,125.08/x - Step 3: Cross multiply
117,805,249.82x = 162,582,727.86 × 87,984,125.08 - Step 4: Simplify right side
117,805,249.82x = 14,304,699,064,208,650 - Step 5: Solve for x
x = 14,304,699,064,208,650/117,805,249.82 - Step 6: Final answer
x = 121,426,668.90
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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.