Finding the Fourth Proportional to 7,120,276.24, 10,680,414.28 and 1,728,890.32
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Solution
The fourth proportional to 7,120,276.24, 10,680,414.28 and 1,728,890.32 is: 2,593,335.46
Step by Step Solution
- Step 1: Write the proportion equation
7,120,276.24 : 10,680,414.28 = 1,728,890.32 : x - Step 2: Convert to fraction form
7,120,276.24/10,680,414.28 = 1,728,890.32/x - Step 3: Cross multiply
7,120,276.24x = 10,680,414.28 × 1,728,890.32 - Step 4: Simplify right side
7,120,276.24x = 18,465,264,862,281.77 - Step 5: Solve for x
x = 18,465,264,862,281.77/7,120,276.24 - Step 6: Final answer
x = 2,593,335.46
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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.