Finding the Fourth Proportional to 3,900,642.64, 5,382,415.21 and 2,247,330.63
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Solution
The fourth proportional to 3,900,642.64, 5,382,415.21 and 2,247,330.63 is: 3,101,044.54
Step by Step Solution
- Step 1: Write the proportion equation
3,900,642.64 : 5,382,415.21 = 2,247,330.63 : x - Step 2: Convert to fraction form
3,900,642.64/5,382,415.21 = 2,247,330.63/x - Step 3: Cross multiply
3,900,642.64x = 5,382,415.21 × 2,247,330.63 - Step 4: Simplify right side
3,900,642.64x = 12,096,066,564,810.88 - Step 5: Solve for x
x = 12,096,066,564,810.88/3,900,642.64 - Step 6: Final answer
x = 3,101,044.54
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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.