Finding the Fourth Proportional to 7,193,323.20, 9,926,669.80 and 3,930,067.68
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Solution
The fourth proportional to 7,193,323.20, 9,926,669.80 and 3,930,067.68 is: 5,423,429.90
Step by Step Solution
- Step 1: Write the proportion equation
7,193,323.20 : 9,926,669.80 = 3,930,067.68 : x - Step 2: Convert to fraction form
7,193,323.20/9,926,669.80 = 3,930,067.68/x - Step 3: Cross multiply
7,193,323.20x = 9,926,669.80 × 3,930,067.68 - Step 4: Simplify right side
7,193,323.20x = 39,012,484,151,012.07 - Step 5: Solve for x
x = 39,012,484,151,012.07/7,193,323.20 - Step 6: Final answer
x = 5,423,429.90
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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.