Finding the Fourth Proportional to 3,889,752.64, 5,368,561.24 and 2,319,985.12
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Solution
The fourth proportional to 3,889,752.64, 5,368,561.24 and 2,319,985.12 is: 3,201,998.52
Step by Step Solution
- Step 1: Write the proportion equation
3,889,752.64 : 5,368,561.24 = 2,319,985.12 : x - Step 2: Convert to fraction form
3,889,752.64/5,368,561.24 = 2,319,985.12/x - Step 3: Cross multiply
3,889,752.64x = 5,368,561.24 × 2,319,985.12 - Step 4: Simplify right side
3,889,752.64x = 12,454,982,192,608.75 - Step 5: Solve for x
x = 12,454,982,192,608.75/3,889,752.64 - Step 6: Final answer
x = 3,201,998.52
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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.