Finding the Fourth Proportional to 6,922,639.49, 10,384,943.18 and 2,130,728.09
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Solution
The fourth proportional to 6,922,639.49, 10,384,943.18 and 2,130,728.09 is: 3,196,394.98
Step by Step Solution
- Step 1: Write the proportion equation
6,922,639.49 : 10,384,943.18 = 2,130,728.09 : x - Step 2: Convert to fraction form
6,922,639.49/10,384,943.18 = 2,130,728.09/x - Step 3: Cross multiply
6,922,639.49x = 10,384,943.18 × 2,130,728.09 - Step 4: Simplify right side
6,922,639.49x = 22,127,490,084,101.57 - Step 5: Solve for x
x = 22,127,490,084,101.57/6,922,639.49 - Step 6: Final answer
x = 3,196,394.98
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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.