Finding the Fourth Proportional to 158,515,222.91, 218,752,781.00 and 87,952,110.75
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Solution
The fourth proportional to 158,515,222.91, 218,752,781.00 and 87,952,110.75 is: 121,374,896.80
Step by Step Solution
- Step 1: Write the proportion equation
158,515,222.91 : 218,752,781.00 = 87,952,110.75 : x - Step 2: Convert to fraction form
158,515,222.91/218,752,781.00 = 87,952,110.75/x - Step 3: Cross multiply
158,515,222.91x = 218,752,781.00 × 87,952,110.75 - Step 4: Simplify right side
158,515,222.91x = 19,239,768,820,942,736 - Step 5: Solve for x
x = 19,239,768,820,942,736/158,515,222.91 - Step 6: Final answer
x = 121,374,896.80
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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.