Finding the Fourth Proportional to 20,982,228.75, 31,471,898.49 and 12,896,452.35
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Solution
The fourth proportional to 20,982,228.75, 31,471,898.49 and 12,896,452.35 is: 19,343,790.60
Step by Step Solution
- Step 1: Write the proportion equation
20,982,228.75 : 31,471,898.49 = 12,896,452.35 : x - Step 2: Convert to fraction form
20,982,228.75/31,471,898.49 = 12,896,452.35/x - Step 3: Cross multiply
20,982,228.75x = 31,471,898.49 × 12,896,452.35 - Step 4: Simplify right side
20,982,228.75x = 405,875,839,240,321.94 - Step 5: Solve for x
x = 405,875,839,240,321.94/20,982,228.75 - Step 6: Final answer
x = 19,343,790.60
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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.