Finding the Fourth Proportional to 117,517,877.72, 162,003,750.42 and 82,125,801.62
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Solution
The fourth proportional to 117,517,877.72, 162,003,750.42 and 82,125,801.62 is: 113,214,160.49
Step by Step Solution
- Step 1: Write the proportion equation
117,517,877.72 : 162,003,750.42 = 82,125,801.62 : x - Step 2: Convert to fraction form
117,517,877.72/162,003,750.42 = 82,125,801.62/x - Step 3: Cross multiply
117,517,877.72x = 162,003,750.42 × 82,125,801.62 - Step 4: Simplify right side
117,517,877.72x = 13,304,687,868,688,912 - Step 5: Solve for x
x = 13,304,687,868,688,912/117,517,877.72 - Step 6: Final answer
x = 113,214,160.49
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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.