Finding the Fourth Proportional to 21,612,890.84, 32,416,940.21 and 5,438,846.48
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Solution
The fourth proportional to 21,612,890.84, 32,416,940.21 and 5,438,846.48 is: 8,157,666.75
Step by Step Solution
- Step 1: Write the proportion equation
21,612,890.84 : 32,416,940.21 = 5,438,846.48 : x - Step 2: Convert to fraction form
21,612,890.84/32,416,940.21 = 5,438,846.48/x - Step 3: Cross multiply
21,612,890.84x = 32,416,940.21 × 5,438,846.48 - Step 4: Simplify right side
21,612,890.84x = 176,310,760,964,250 - Step 5: Solve for x
x = 176,310,760,964,250/21,612,890.84 - Step 6: Final answer
x = 8,157,666.75
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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.