Finding the Fourth Proportional to 206,844,402.40, 310,266,603.60 and 120,680,101.60
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Solution
The fourth proportional to 206,844,402.40, 310,266,603.60 and 120,680,101.60 is: 181,020,152.40
Step by Step Solution
- Step 1: Write the proportion equation
206,844,402.40 : 310,266,603.60 = 120,680,101.60 : x - Step 2: Convert to fraction form
206,844,402.40/310,266,603.60 = 120,680,101.60/x - Step 3: Cross multiply
206,844,402.40x = 310,266,603.60 × 120,680,101.60 - Step 4: Simplify right side
206,844,402.40x = 37,443,005,245,534,928 - Step 5: Solve for x
x = 37,443,005,245,534,928/206,844,402.40 - Step 6: Final answer
x = 181,020,152.40
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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.