Finding the Fourth Proportional to 281,101,544.40, 421,652,316.60 and 166,026,853.20
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Solution
The fourth proportional to 281,101,544.40, 421,652,316.60 and 166,026,853.20 is: 249,040,279.80
Step by Step Solution
- Step 1: Write the proportion equation
281,101,544.40 : 421,652,316.60 = 166,026,853.20 : x - Step 2: Convert to fraction form
281,101,544.40/421,652,316.60 = 166,026,853.20/x - Step 3: Cross multiply
281,101,544.40x = 421,652,316.60 × 166,026,853.20 - Step 4: Simplify right side
281,101,544.40x = 70,005,607,269,588,120 - Step 5: Solve for x
x = 70,005,607,269,588,120/281,101,544.40 - Step 6: Final answer
x = 249,040,279.80
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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.