Finding the Fourth Proportional to 3,178,152.40, 4,767,228.60 and 2,916,878.80
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Solution
The fourth proportional to 3,178,152.40, 4,767,228.60 and 2,916,878.80 is: 4,375,318.20
Step by Step Solution
- Step 1: Write the proportion equation
3,178,152.40 : 4,767,228.60 = 2,916,878.80 : x - Step 2: Convert to fraction form
3,178,152.40/4,767,228.60 = 2,916,878.80/x - Step 3: Cross multiply
3,178,152.40x = 4,767,228.60 × 2,916,878.80 - Step 4: Simplify right side
3,178,152.40x = 13,905,428,038,093.68 - Step 5: Solve for x
x = 13,905,428,038,093.68/3,178,152.40 - Step 6: Final answer
x = 4,375,318.20
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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.