Finding the Fourth Proportional to 136,076,823.60, 204,115,235.40 and 84,987,628.80
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Solution
The fourth proportional to 136,076,823.60, 204,115,235.40 and 84,987,628.80 is: 127,481,443.20
Step by Step Solution
- Step 1: Write the proportion equation
136,076,823.60 : 204,115,235.40 = 84,987,628.80 : x - Step 2: Convert to fraction form
136,076,823.60/204,115,235.40 = 84,987,628.80/x - Step 3: Cross multiply
136,076,823.60x = 204,115,235.40 × 84,987,628.80 - Step 4: Simplify right side
136,076,823.60x = 17,347,269,858,599,820 - Step 5: Solve for x
x = 17,347,269,858,599,820/136,076,823.60 - Step 6: Final answer
x = 127,481,443.20
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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.