Finding the Fourth Proportional to 6,865,979.76, 9,475,375.32 and 3,810,219.12
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Solution
The fourth proportional to 6,865,979.76, 9,475,375.32 and 3,810,219.12 is: 5,258,281.77
Step by Step Solution
- Step 1: Write the proportion equation
6,865,979.76 : 9,475,375.32 = 3,810,219.12 : x - Step 2: Convert to fraction form
6,865,979.76/9,475,375.32 = 3,810,219.12/x - Step 3: Cross multiply
6,865,979.76x = 9,475,375.32 × 3,810,219.12 - Step 4: Simplify right side
6,865,979.76x = 36,103,256,213,440.12 - Step 5: Solve for x
x = 36,103,256,213,440.12/6,865,979.76 - Step 6: Final answer
x = 5,258,281.77
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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.