Finding the Fourth Proportional to 2,578,149.81, 3,882,648.40 and 2,348,311.90
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Solution
The fourth proportional to 2,578,149.81, 3,882,648.40 and 2,348,311.90 is: 3,536,516.55
Step by Step Solution
- Step 1: Write the proportion equation
2,578,149.81 : 3,882,648.40 = 2,348,311.90 : x - Step 2: Convert to fraction form
2,578,149.81/3,882,648.40 = 2,348,311.90/x - Step 3: Cross multiply
2,578,149.81x = 3,882,648.40 × 2,348,311.90 - Step 4: Simplify right side
2,578,149.81x = 9,117,669,441,235.96 - Step 5: Solve for x
x = 9,117,669,441,235.96/2,578,149.81 - Step 6: Final answer
x = 3,536,516.55
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.