Finding the Fourth Proportional to 18,143,635.86, 27,201,770.46 and 10,953,461.61
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Solution
The fourth proportional to 18,143,635.86, 27,201,770.46 and 10,953,461.61 is: 16,421,931.68
Step by Step Solution
- Step 1: Write the proportion equation
18,143,635.86 : 27,201,770.46 = 10,953,461.61 : x - Step 2: Convert to fraction form
18,143,635.86/27,201,770.46 = 10,953,461.61/x - Step 3: Cross multiply
18,143,635.86x = 27,201,770.46 × 10,953,461.61 - Step 4: Simplify right side
18,143,635.86x = 297,953,548,457,642.06 - Step 5: Solve for x
x = 297,953,548,457,642.06/18,143,635.86 - Step 6: Final answer
x = 16,421,931.68
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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.