Finding the Fourth Proportional to 18,438,824.58, 25,444,911.02 and 10,178,709.52
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Solution
The fourth proportional to 18,438,824.58, 25,444,911.02 and 10,178,709.52 is: 14,046,250.99
Step by Step Solution
- Step 1: Write the proportion equation
18,438,824.58 : 25,444,911.02 = 10,178,709.52 : x - Step 2: Convert to fraction form
18,438,824.58/25,444,911.02 = 10,178,709.52/x - Step 3: Cross multiply
18,438,824.58x = 25,444,911.02 × 10,178,709.52 - Step 4: Simplify right side
18,438,824.58x = 258,996,358,034,826.91 - Step 5: Solve for x
x = 258,996,358,034,826.91/18,438,824.58 - Step 6: Final answer
x = 14,046,250.99
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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.