Finding the Fourth Proportional to 5,432,642.30, 8,148,963.45 and 2,236,706.30
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Solution
The fourth proportional to 5,432,642.30, 8,148,963.45 and 2,236,706.30 is: 3,355,059.45
Step by Step Solution
- Step 1: Write the proportion equation
5,432,642.30 : 8,148,963.45 = 2,236,706.30 : x - Step 2: Convert to fraction form
5,432,642.30/8,148,963.45 = 2,236,706.30/x - Step 3: Cross multiply
5,432,642.30x = 8,148,963.45 × 2,236,706.30 - Step 4: Simplify right side
5,432,642.30x = 18,226,837,887,084.73 - Step 5: Solve for x
x = 18,226,837,887,084.73/5,432,642.30 - Step 6: Final answer
x = 3,355,059.45
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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.