Finding the Fourth Proportional to 39,381,065.98, 54,348,883 and 21,743,369.84
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Solution
The fourth proportional to 39,381,065.98, 54,348,883 and 21,743,369.84 is: 30,007,513.36
Step by Step Solution
- Step 1: Write the proportion equation
39,381,065.98 : 54,348,883 = 21,743,369.84 : x - Step 2: Convert to fraction form
39,381,065.98/54,348,883 = 21,743,369.84/x - Step 3: Cross multiply
39,381,065.98x = 54,348,883 × 21,743,369.84 - Step 4: Simplify right side
39,381,065.98x = 1,181,727,863,459,888.75 - Step 5: Solve for x
x = 1,181,727,863,459,888.75/39,381,065.98 - Step 6: Final answer
x = 30,007,513.36
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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.