Finding the Fourth Proportional to 71,043,463.80, 106,565,195.70 and 17,190,775.80
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Solution
The fourth proportional to 71,043,463.80, 106,565,195.70 and 17,190,775.80 is: 25,786,163.70
Step by Step Solution
- Step 1: Write the proportion equation
71,043,463.80 : 106,565,195.70 = 17,190,775.80 : x - Step 2: Convert to fraction form
71,043,463.80/106,565,195.70 = 17,190,775.80/x - Step 3: Cross multiply
71,043,463.80x = 106,565,195.70 × 17,190,775.80 - Step 4: Simplify right side
71,043,463.80x = 1,831,938,387,361,824.25 - Step 5: Solve for x
x = 1,831,938,387,361,824.25/71,043,463.80 - Step 6: Final answer
x = 25,786,163.70
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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.