Finding the Fourth Proportional to 907,550,795.40, 1,361,326,193.10 and 261,383,857.80
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Solution
The fourth proportional to 907,550,795.40, 1,361,326,193.10 and 261,383,857.80 is: 392,075,786.70
Step by Step Solution
- Step 1: Write the proportion equation
907,550,795.40 : 1,361,326,193.10 = 261,383,857.80 : x - Step 2: Convert to fraction form
907,550,795.40/1,361,326,193.10 = 261,383,857.80/x - Step 3: Cross multiply
907,550,795.40x = 1,361,326,193.10 × 261,383,857.80 - Step 4: Simplify right side
907,550,795.40x = 355,828,692,076,665,728 - Step 5: Solve for x
x = 355,828,692,076,665,728/907,550,795.40 - Step 6: Final answer
x = 392,075,786.70
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1.5x scale
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.