Finding the Fourth Proportional to 9,628,952.76, 13,288,115.41 and 5,218,819.19
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Solution
The fourth proportional to 9,628,952.76, 13,288,115.41 and 5,218,819.19 is: 7,202,057.53
Step by Step Solution
- Step 1: Write the proportion equation
9,628,952.76 : 13,288,115.41 = 5,218,819.19 : x - Step 2: Convert to fraction form
9,628,952.76/13,288,115.41 = 5,218,819.19/x - Step 3: Cross multiply
9,628,952.76x = 13,288,115.41 × 5,218,819.19 - Step 4: Simplify right side
9,628,952.76x = 69,348,271,708,357.03 - Step 5: Solve for x
x = 69,348,271,708,357.03/9,628,952.76 - Step 6: Final answer
x = 7,202,057.53
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.