Finding the Fourth Proportional to 5,149,342.20, 7,724,013.30 and 1,363,207.80
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Solution
The fourth proportional to 5,149,342.20, 7,724,013.30 and 1,363,207.80 is: 2,044,811.70
Step by Step Solution
- Step 1: Write the proportion equation
5,149,342.20 : 7,724,013.30 = 1,363,207.80 : x - Step 2: Convert to fraction form
5,149,342.20/7,724,013.30 = 1,363,207.80/x - Step 3: Cross multiply
5,149,342.20x = 7,724,013.30 × 1,363,207.80 - Step 4: Simplify right side
5,149,342.20x = 10,529,435,177,863.74 - Step 5: Solve for x
x = 10,529,435,177,863.74/5,149,342.20 - Step 6: Final answer
x = 2,044,811.70
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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.