Finding the Fourth Proportional to 38,308,261.82, 52,866,517.78 and 20,905,727.99
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Solution
The fourth proportional to 38,308,261.82, 52,866,517.78 and 20,905,727.99 is: 28,850,513.91
Step by Step Solution
- Step 1: Write the proportion equation
38,308,261.82 : 52,866,517.78 = 20,905,727.99 : x - Step 2: Convert to fraction form
38,308,261.82/52,866,517.78 = 20,905,727.99/x - Step 3: Cross multiply
38,308,261.82x = 52,866,517.78 × 20,905,727.99 - Step 4: Simplify right side
38,308,261.82x = 1,105,213,040,487,178.62 - Step 5: Solve for x
x = 1,105,213,040,487,178.62/38,308,261.82 - Step 6: Final answer
x = 28,850,513.91
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.