Finding the Fourth Proportional to 25,500,821.68, 35,190,107.40 and 13,898,135.44
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Solution
The fourth proportional to 25,500,821.68, 35,190,107.40 and 13,898,135.44 is: 19,178,867.45
Step by Step Solution
- Step 1: Write the proportion equation
25,500,821.68 : 35,190,107.40 = 13,898,135.44 : x - Step 2: Convert to fraction form
25,500,821.68/35,190,107.40 = 13,898,135.44/x - Step 3: Cross multiply
25,500,821.68x = 35,190,107.40 × 13,898,135.44 - Step 4: Simplify right side
25,500,821.68x = 489,076,878,793,346.19 - Step 5: Solve for x
x = 489,076,878,793,346.19/25,500,821.68 - Step 6: Final answer
x = 19,178,867.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.