Finding the Fourth Proportional to 15,294,206.19, 21,106,561.45 and 8,324,546.88
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Solution
The fourth proportional to 15,294,206.19, 21,106,561.45 and 8,324,546.88 is: 11,488,177.82
Step by Step Solution
- Step 1: Write the proportion equation
15,294,206.19 : 21,106,561.45 = 8,324,546.88 : x - Step 2: Convert to fraction form
15,294,206.19/21,106,561.45 = 8,324,546.88/x - Step 3: Cross multiply
15,294,206.19x = 21,106,561.45 × 8,324,546.88 - Step 4: Simplify right side
15,294,206.19x = 175,702,560,266,125.78 - Step 5: Solve for x
x = 175,702,560,266,125.78/15,294,206.19 - Step 6: Final answer
x = 11,488,177.82
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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.