Finding the Fourth Proportional to 166,212,085.80, 249,318,128.70 and 75,512,821.80
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Solution
The fourth proportional to 166,212,085.80, 249,318,128.70 and 75,512,821.80 is: 113,269,232.70
Step by Step Solution
- Step 1: Write the proportion equation
166,212,085.80 : 249,318,128.70 = 75,512,821.80 : x - Step 2: Convert to fraction form
166,212,085.80/249,318,128.70 = 75,512,821.80/x - Step 3: Cross multiply
166,212,085.80x = 249,318,128.70 × 75,512,821.80 - Step 4: Simplify right side
166,212,085.80x = 18,826,715,424,032,564 - Step 5: Solve for x
x = 18,826,715,424,032,564/166,212,085.80 - Step 6: Final answer
x = 113,269,232.70
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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.