Finding the Fourth Proportional to 20,137,336.62, 30,221,048.09 and 13,645,017.99
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Solution
The fourth proportional to 20,137,336.62, 30,221,048.09 and 13,645,017.99 is: 20,477,720.20
Step by Step Solution
- Step 1: Write the proportion equation
20,137,336.62 : 30,221,048.09 = 13,645,017.99 : x - Step 2: Convert to fraction form
20,137,336.62/30,221,048.09 = 13,645,017.99/x - Step 3: Cross multiply
20,137,336.62x = 30,221,048.09 × 13,645,017.99 - Step 4: Simplify right side
20,137,336.62x = 412,366,744,796,480.06 - Step 5: Solve for x
x = 412,366,744,796,480.06/20,137,336.62 - Step 6: Final answer
x = 20,477,720.20
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.