Finding the Fourth Proportional to 3,901,639.93, 5,386,104.12 and 2,935,139.02
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Solution
The fourth proportional to 3,901,639.93, 5,386,104.12 and 2,935,139.02 is: 4,051,876.81
Step by Step Solution
- Step 1: Write the proportion equation
3,901,639.93 : 5,386,104.12 = 2,935,139.02 : x - Step 2: Convert to fraction form
3,901,639.93/5,386,104.12 = 2,935,139.02/x - Step 3: Cross multiply
3,901,639.93x = 5,386,104.12 × 2,935,139.02 - Step 4: Simplify right side
3,901,639.93x = 15,808,964,368,394.76 - Step 5: Solve for x
x = 15,808,964,368,394.76/3,901,639.93 - Step 6: Final answer
x = 4,051,876.81
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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.