Finding the Fourth Proportional to 99,650,791.20, 149,476,186.80 and 83,494,984.80
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Solution
The fourth proportional to 99,650,791.20, 149,476,186.80 and 83,494,984.80 is: 125,242,477.20
Step by Step Solution
- Step 1: Write the proportion equation
99,650,791.20 : 149,476,186.80 = 83,494,984.80 : x - Step 2: Convert to fraction form
99,650,791.20/149,476,186.80 = 83,494,984.80/x - Step 3: Cross multiply
99,650,791.20x = 149,476,186.80 × 83,494,984.80 - Step 4: Simplify right side
99,650,791.20x = 12,480,511,944,827,962 - Step 5: Solve for x
x = 12,480,511,944,827,962/99,650,791.20 - Step 6: Final answer
x = 125,242,477.20
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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.