Finding the Fourth Proportional to 5,154,328.74, 7,116,532.11 and 3,221,458.14
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Solution
The fourth proportional to 5,154,328.74, 7,116,532.11 and 3,221,458.14 is: 4,447,836.27
Step by Step Solution
- Step 1: Write the proportion equation
5,154,328.74 : 7,116,532.11 = 3,221,458.14 : x - Step 2: Convert to fraction form
5,154,328.74/7,116,532.11 = 3,221,458.14/x - Step 3: Cross multiply
5,154,328.74x = 7,116,532.11 × 3,221,458.14 - Step 4: Simplify right side
5,154,328.74x = 22,925,610,294,330.88 - Step 5: Solve for x
x = 22,925,610,294,330.88/5,154,328.74 - Step 6: Final answer
x = 4,447,836.27
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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.