Finding the Fourth Proportional to 21,766,459.05, 32,639,599.37 and 8,115,940.28
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Solution
The fourth proportional to 21,766,459.05, 32,639,599.37 and 8,115,940.28 is: 12,170,148.50
Step by Step Solution
- Step 1: Write the proportion equation
21,766,459.05 : 32,639,599.37 = 8,115,940.28 : x - Step 2: Convert to fraction form
21,766,459.05/32,639,599.37 = 8,115,940.28/x - Step 3: Cross multiply
21,766,459.05x = 32,639,599.37 × 8,115,940.28 - Step 4: Simplify right side
21,766,459.05x = 264,901,039,046,267.94 - Step 5: Solve for x
x = 264,901,039,046,267.94/21,766,459.05 - Step 6: Final answer
x = 12,170,148.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.