Finding the Fourth Proportional to 158,125,112.29, 218,214,883.07 and 91,107,031.33
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Solution
The fourth proportional to 158,125,112.29, 218,214,883.07 and 91,107,031.33 is: 125,728,987.01
Step by Step Solution
- Step 1: Write the proportion equation
158,125,112.29 : 218,214,883.07 = 91,107,031.33 : x - Step 2: Convert to fraction form
158,125,112.29/218,214,883.07 = 91,107,031.33/x - Step 3: Cross multiply
158,125,112.29x = 218,214,883.07 × 91,107,031.33 - Step 4: Simplify right side
158,125,112.29x = 19,880,910,188,530,776 - Step 5: Solve for x
x = 19,880,910,188,530,776/158,125,112.29 - Step 6: Final answer
x = 125,728,987.01
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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.