Finding the Fourth Proportional to 28,749,936.80, 43,103,634.60 and 13,586,153.60
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Solution
The fourth proportional to 28,749,936.80, 43,103,634.60 and 13,586,153.60 is: 20,369,178.70
Step by Step Solution
- Step 1: Write the proportion equation
28,749,936.80 : 43,103,634.60 = 13,586,153.60 : x - Step 2: Convert to fraction form
28,749,936.80/43,103,634.60 = 13,586,153.60/x - Step 3: Cross multiply
28,749,936.80x = 43,103,634.60 × 13,586,153.60 - Step 4: Simplify right side
28,749,936.80x = 585,612,600,393,874.62 - Step 5: Solve for x
x = 585,612,600,393,874.62/28,749,936.80 - Step 6: Final answer
x = 20,369,178.70
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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.