Finding the Fourth Proportional to 21,390,431.40, 32,087,576.52 and 6,037,890.66
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Solution
The fourth proportional to 21,390,431.40, 32,087,576.52 and 6,037,890.66 is: 9,057,380.61
Step by Step Solution
- Step 1: Write the proportion equation
21,390,431.40 : 32,087,576.52 = 6,037,890.66 : x - Step 2: Convert to fraction form
21,390,431.40/32,087,576.52 = 6,037,890.66/x - Step 3: Cross multiply
21,390,431.40x = 32,087,576.52 × 6,037,890.66 - Step 4: Simplify right side
21,390,431.40x = 193,741,278,572,143.31 - Step 5: Solve for x
x = 193,741,278,572,143.31/21,390,431.40 - Step 6: Final answer
x = 9,057,380.61
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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.