Finding the Fourth Proportional to 7,808,079.28, 10,772,541.64 and 4,544,201.84
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Solution
The fourth proportional to 7,808,079.28, 10,772,541.64 and 4,544,201.84 is: 6,269,480.85
Step by Step Solution
- Step 1: Write the proportion equation
7,808,079.28 : 10,772,541.64 = 4,544,201.84 : x - Step 2: Convert to fraction form
7,808,079.28/10,772,541.64 = 4,544,201.84/x - Step 3: Cross multiply
7,808,079.28x = 10,772,541.64 × 4,544,201.84 - Step 4: Simplify right side
7,808,079.28x = 48,952,603,541,964.62 - Step 5: Solve for x
x = 48,952,603,541,964.62/7,808,079.28 - Step 6: Final answer
x = 6,269,480.85
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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.