Finding the Fourth Proportional to 17,347,881.20, 26,021,821.80 and 8,389,929.20
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Solution
The fourth proportional to 17,347,881.20, 26,021,821.80 and 8,389,929.20 is: 12,584,893.80
Step by Step Solution
- Step 1: Write the proportion equation
17,347,881.20 : 26,021,821.80 = 8,389,929.20 : x - Step 2: Convert to fraction form
17,347,881.20/26,021,821.80 = 8,389,929.20/x - Step 3: Cross multiply
17,347,881.20x = 26,021,821.80 × 8,389,929.20 - Step 4: Simplify right side
17,347,881.20x = 218,321,242,557,016.53 - Step 5: Solve for x
x = 218,321,242,557,016.53/17,347,881.20 - Step 6: Final answer
x = 12,584,893.80
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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.