Finding the Fourth Proportional to 201,335,537.80, 302,003,306.70 and 128,776,126.60
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Solution
The fourth proportional to 201,335,537.80, 302,003,306.70 and 128,776,126.60 is: 193,164,189.90
Step by Step Solution
- Step 1: Write the proportion equation
201,335,537.80 : 302,003,306.70 = 128,776,126.60 : x - Step 2: Convert to fraction form
201,335,537.80/302,003,306.70 = 128,776,126.60/x - Step 3: Cross multiply
201,335,537.80x = 302,003,306.70 × 128,776,126.60 - Step 4: Simplify right side
201,335,537.80x = 38,890,816,057,217,824 - Step 5: Solve for x
x = 38,890,816,057,217,824/201,335,537.80 - Step 6: Final answer
x = 193,164,189.90
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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.