Finding the Fourth Proportional to 53,207,633.97, 73,451,252.93 and 31,178,075.99
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Solution
The fourth proportional to 53,207,633.97, 73,451,252.93 and 31,178,075.99 is: 43,040,228.89
Step by Step Solution
- Step 1: Write the proportion equation
53,207,633.97 : 73,451,252.93 = 31,178,075.99 : x - Step 2: Convert to fraction form
53,207,633.97/73,451,252.93 = 31,178,075.99/x - Step 3: Cross multiply
53,207,633.97x = 73,451,252.93 × 31,178,075.99 - Step 4: Simplify right side
53,207,633.97x = 2,290,068,744,889,103.50 - Step 5: Solve for x
x = 2,290,068,744,889,103.50/53,207,633.97 - Step 6: Final answer
x = 43,040,228.89
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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.