Finding the Fourth Proportional to 5,187,622.70, 7,781,434.05 and 4,557,766.70
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Solution
The fourth proportional to 5,187,622.70, 7,781,434.05 and 4,557,766.70 is: 6,836,650.05
Step by Step Solution
- Step 1: Write the proportion equation
5,187,622.70 : 7,781,434.05 = 4,557,766.70 : x - Step 2: Convert to fraction form
5,187,622.70/7,781,434.05 = 4,557,766.70/x - Step 3: Cross multiply
5,187,622.70x = 7,781,434.05 × 4,557,766.70 - Step 4: Simplify right side
5,187,622.70x = 35,465,960,991,336.13 - Step 5: Solve for x
x = 35,465,960,991,336.13/5,187,622.70 - Step 6: Final answer
x = 6,836,650.05
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1.5x scale
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.