Finding the Fourth Proportional to 5,185,440.10, 7,785,158.55 and 4,121,683.30
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Solution
The fourth proportional to 5,185,440.10, 7,785,158.55 and 4,121,683.30 is: 6,188,087.68
Step by Step Solution
- Step 1: Write the proportion equation
5,185,440.10 : 7,785,158.55 = 4,121,683.30 : x - Step 2: Convert to fraction form
5,185,440.10/7,785,158.55 = 4,121,683.30/x - Step 3: Cross multiply
5,185,440.10x = 7,785,158.55 × 4,121,683.30 - Step 4: Simplify right side
5,185,440.10x = 32,087,957,983,387.21 - Step 5: Solve for x
x = 32,087,957,983,387.21/5,185,440.10 - Step 6: Final answer
x = 6,188,087.68
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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.