Finding the Fourth Proportional to 157,465,446.52, 217,302,451.50 and 87,850,838.12
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Solution
The fourth proportional to 157,465,446.52, 217,302,451.50 and 87,850,838.12 is: 121,234,232.09
Step by Step Solution
- Step 1: Write the proportion equation
157,465,446.52 : 217,302,451.50 = 87,850,838.12 : x - Step 2: Convert to fraction form
157,465,446.52/217,302,451.50 = 87,850,838.12/x - Step 3: Cross multiply
157,465,446.52x = 217,302,451.50 × 87,850,838.12 - Step 4: Simplify right side
157,465,446.52x = 19,090,202,489,805,652 - Step 5: Solve for x
x = 19,090,202,489,805,652/157,465,446.52 - Step 6: Final answer
x = 121,234,232.09
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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.