Finding the Fourth Proportional to 221,117,390.19, 331,676,196.05 and 75,552,378.82
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Solution
The fourth proportional to 221,117,390.19, 331,676,196.05 and 75,552,378.82 is: 113,328,606.07
Step by Step Solution
- Step 1: Write the proportion equation
221,117,390.19 : 331,676,196.05 = 75,552,378.82 : x - Step 2: Convert to fraction form
221,117,390.19/331,676,196.05 = 75,552,378.82/x - Step 3: Cross multiply
221,117,390.19x = 331,676,196.05 × 75,552,378.82 - Step 4: Simplify right side
221,117,390.19x = 25,058,925,608,905,876 - Step 5: Solve for x
x = 25,058,925,608,905,876/221,117,390.19 - Step 6: Final answer
x = 113,328,606.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.