Finding the Fourth Proportional to 8,324,805.20, 12,487,207.80 and 2,645,603.60
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Solution
The fourth proportional to 8,324,805.20, 12,487,207.80 and 2,645,603.60 is: 3,968,405.40
Step by Step Solution
- Step 1: Write the proportion equation
8,324,805.20 : 12,487,207.80 = 2,645,603.60 : x - Step 2: Convert to fraction form
8,324,805.20/12,487,207.80 = 2,645,603.60/x - Step 3: Cross multiply
8,324,805.20x = 12,487,207.80 × 2,645,603.60 - Step 4: Simplify right side
8,324,805.20x = 33,036,201,909,628.08 - Step 5: Solve for x
x = 33,036,201,909,628.08/8,324,805.20 - Step 6: Final answer
x = 3,968,405.40
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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.