Finding the Fourth Proportional to 4,312,522.20, 6,465,672.90 and 2,817,456.60
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Solution
The fourth proportional to 4,312,522.20, 6,465,672.90 and 2,817,456.60 is: 4,224,152.81
Step by Step Solution
- Step 1: Write the proportion equation
4,312,522.20 : 6,465,672.90 = 2,817,456.60 : x - Step 2: Convert to fraction form
4,312,522.20/6,465,672.90 = 2,817,456.60/x - Step 3: Cross multiply
4,312,522.20x = 6,465,672.90 × 2,817,456.60 - Step 4: Simplify right side
4,312,522.20x = 18,216,752,785,546.14 - Step 5: Solve for x
x = 18,216,752,785,546.14/4,312,522.20 - Step 6: Final answer
x = 4,224,152.81
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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.