Finding the Fourth Proportional to 20,616,760.84, 28,450,350.51 and 11,449,994.08
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Solution
The fourth proportional to 20,616,760.84, 28,450,350.51 and 11,449,994.08 is: 15,800,558.94
Step by Step Solution
- Step 1: Write the proportion equation
20,616,760.84 : 28,450,350.51 = 11,449,994.08 : x - Step 2: Convert to fraction form
20,616,760.84/28,450,350.51 = 11,449,994.08/x - Step 3: Cross multiply
20,616,760.84x = 28,450,350.51 × 11,449,994.08 - Step 4: Simplify right side
20,616,760.84x = 325,756,344,788,813.81 - Step 5: Solve for x
x = 325,756,344,788,813.81/20,616,760.84 - Step 6: Final answer
x = 15,800,558.94
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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.