Finding the Fourth Proportional to 2,869,484.70, 3,960,319.40 and 2,180,022.02
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Solution
The fourth proportional to 2,869,484.70, 3,960,319.40 and 2,180,022.02 is: 3,008,757.45
Step by Step Solution
- Step 1: Write the proportion equation
2,869,484.70 : 3,960,319.40 = 2,180,022.02 : x - Step 2: Convert to fraction form
2,869,484.70/3,960,319.40 = 2,180,022.02/x - Step 3: Cross multiply
2,869,484.70x = 3,960,319.40 × 2,180,022.02 - Step 4: Simplify right side
2,869,484.70x = 8,633,583,467,531.48 - Step 5: Solve for x
x = 8,633,583,467,531.48/2,869,484.70 - Step 6: Final answer
x = 3,008,757.45
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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.