Finding the Fourth Proportional to 117,476,350.40, 162,107,872.90 and 67,919,917.74
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Solution
The fourth proportional to 117,476,350.40, 162,107,872.90 and 67,919,917.74 is: 93,723,999.38
Step by Step Solution
- Step 1: Write the proportion equation
117,476,350.40 : 162,107,872.90 = 67,919,917.74 : x - Step 2: Convert to fraction form
117,476,350.40/162,107,872.90 = 67,919,917.74/x - Step 3: Cross multiply
117,476,350.40x = 162,107,872.90 × 67,919,917.74 - Step 4: Simplify right side
117,476,350.40x = 11,010,353,392,374,374 - Step 5: Solve for x
x = 11,010,353,392,374,374/117,476,350.40 - Step 6: Final answer
x = 93,723,999.38
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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.