Finding the Fourth Proportional to 19,831,519.80, 29,747,279.70 and 16,997,167.80
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Solution
The fourth proportional to 19,831,519.80, 29,747,279.70 and 16,997,167.80 is: 25,495,751.70
Step by Step Solution
- Step 1: Write the proportion equation
19,831,519.80 : 29,747,279.70 = 16,997,167.80 : x - Step 2: Convert to fraction form
19,831,519.80/29,747,279.70 = 16,997,167.80/x - Step 3: Cross multiply
19,831,519.80x = 29,747,279.70 × 16,997,167.80 - Step 4: Simplify right side
19,831,519.80x = 505,619,504,654,433.69 - Step 5: Solve for x
x = 505,619,504,654,433.69/19,831,519.80 - Step 6: Final answer
x = 25,495,751.70
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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.