Finding the Fourth Proportional to 3,820,718.71, 5,272,511.29 and 2,101,807.99
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Solution
The fourth proportional to 3,820,718.71, 5,272,511.29 and 2,101,807.99 is: 2,900,450.73
Step by Step Solution
- Step 1: Write the proportion equation
3,820,718.71 : 5,272,511.29 = 2,101,807.99 : x - Step 2: Convert to fraction form
3,820,718.71/5,272,511.29 = 2,101,807.99/x - Step 3: Cross multiply
3,820,718.71x = 5,272,511.29 × 2,101,807.99 - Step 4: Simplify right side
3,820,718.71x = 11,081,806,356,687.21 - Step 5: Solve for x
x = 11,081,806,356,687.21/3,820,718.71 - Step 6: Final answer
x = 2,900,450.73
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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.