Finding the Fourth Proportional to 4,609,989.09, 6,916,011.54 and 1,415,438.19
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Solution
The fourth proportional to 4,609,989.09, 6,916,011.54 and 1,415,438.19 is: 2,123,472.89
Step by Step Solution
- Step 1: Write the proportion equation
4,609,989.09 : 6,916,011.54 = 1,415,438.19 : x - Step 2: Convert to fraction form
4,609,989.09/6,916,011.54 = 1,415,438.19/x - Step 3: Cross multiply
4,609,989.09x = 6,916,011.54 × 1,415,438.19 - Step 4: Simplify right side
4,609,989.09x = 9,789,186,856,196.71 - Step 5: Solve for x
x = 9,789,186,856,196.71/4,609,989.09 - Step 6: Final answer
x = 2,123,472.89
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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.