Finding the Fourth Proportional to 15,033,949.80, 20,746,850.84 and 8,158,431.84
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Solution
The fourth proportional to 15,033,949.80, 20,746,850.84 and 8,158,431.84 is: 11,258,636.00
Step by Step Solution
- Step 1: Write the proportion equation
15,033,949.80 : 20,746,850.84 = 8,158,431.84 : x - Step 2: Convert to fraction form
15,033,949.80/20,746,850.84 = 8,158,431.84/x - Step 3: Cross multiply
15,033,949.80x = 20,746,850.84 × 8,158,431.84 - Step 4: Simplify right side
15,033,949.80x = 169,261,768,472,786.75 - Step 5: Solve for x
x = 169,261,768,472,786.75/15,033,949.80 - Step 6: Final answer
x = 11,258,636.00
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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.