Finding the Fourth Proportional to 161,138,148.18, 222,370,676.49 and 87,799,290.18
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Solution
The fourth proportional to 161,138,148.18, 222,370,676.49 and 87,799,290.18 is: 121,163,037.89
Step by Step Solution
- Step 1: Write the proportion equation
161,138,148.18 : 222,370,676.49 = 87,799,290.18 : x - Step 2: Convert to fraction form
161,138,148.18/222,370,676.49 = 87,799,290.18/x - Step 3: Cross multiply
161,138,148.18x = 222,370,676.49 × 87,799,290.18 - Step 4: Simplify right side
161,138,148.18x = 19,523,987,552,668,416 - Step 5: Solve for x
x = 19,523,987,552,668,416/161,138,148.18 - Step 6: Final answer
x = 121,163,037.89
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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.