Finding the Fourth Proportional to 5,202,029.84, 7,178,639.04 and 2,878,782.57
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Solution
The fourth proportional to 5,202,029.84, 7,178,639.04 and 2,878,782.57 is: 3,972,630.22
Step by Step Solution
- Step 1: Write the proportion equation
5,202,029.84 : 7,178,639.04 = 2,878,782.57 : x - Step 2: Convert to fraction form
5,202,029.84/7,178,639.04 = 2,878,782.57/x - Step 3: Cross multiply
5,202,029.84x = 7,178,639.04 × 2,878,782.57 - Step 4: Simplify right side
5,202,029.84x = 20,665,740,944,673.53 - Step 5: Solve for x
x = 20,665,740,944,673.53/5,202,029.84 - Step 6: Final answer
x = 3,972,630.22
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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.