Finding the Fourth Proportional to 8,220,902.70, 12,331,354.05 and 2,541,701.10
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Solution
The fourth proportional to 8,220,902.70, 12,331,354.05 and 2,541,701.10 is: 3,812,551.65
Step by Step Solution
- Step 1: Write the proportion equation
8,220,902.70 : 12,331,354.05 = 2,541,701.10 : x - Step 2: Convert to fraction form
8,220,902.70/12,331,354.05 = 2,541,701.10/x - Step 3: Cross multiply
8,220,902.70x = 12,331,354.05 × 2,541,701.10 - Step 4: Simplify right side
8,220,902.70x = 31,342,616,153,374.46 - Step 5: Solve for x
x = 31,342,616,153,374.46/8,220,902.70 - Step 6: Final answer
x = 3,812,551.65
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Double scale
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Similar ratio
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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.