Finding the Fourth Proportional to 189,038,531.80, 283,557,797.70 and 45,431,363.80
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Solution
The fourth proportional to 189,038,531.80, 283,557,797.70 and 45,431,363.80 is: 68,147,045.70
Step by Step Solution
- Step 1: Write the proportion equation
189,038,531.80 : 283,557,797.70 = 45,431,363.80 : x - Step 2: Convert to fraction form
189,038,531.80/283,557,797.70 = 45,431,363.80/x - Step 3: Cross multiply
189,038,531.80x = 283,557,797.70 × 45,431,363.80 - Step 4: Simplify right side
189,038,531.80x = 12,882,417,465,635,502 - Step 5: Solve for x
x = 12,882,417,465,635,502/189,038,531.80 - Step 6: Final answer
x = 68,147,045.70
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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.