Finding the Fourth Proportional to 38,672,850.76, 53,368,891.50 and 21,031,921.06
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Solution
The fourth proportional to 38,672,850.76, 53,368,891.50 and 21,031,921.06 is: 29,024,245.46
Step by Step Solution
- Step 1: Write the proportion equation
38,672,850.76 : 53,368,891.50 = 21,031,921.06 : x - Step 2: Convert to fraction form
38,672,850.76/53,368,891.50 = 21,031,921.06/x - Step 3: Cross multiply
38,672,850.76x = 53,368,891.50 × 21,031,921.06 - Step 4: Simplify right side
38,672,850.76x = 1,122,450,313,087,704.88 - Step 5: Solve for x
x = 1,122,450,313,087,704.88/38,672,850.76 - Step 6: Final answer
x = 29,024,245.46
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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.