Finding the Fourth Proportional to 10,266,879.92, 15,415,459.44 and 5,726,799.20
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Solution
The fourth proportional to 10,266,879.92, 15,415,459.44 and 5,726,799.20 is: 8,598,643.55
Step by Step Solution
- Step 1: Write the proportion equation
10,266,879.92 : 15,415,459.44 = 5,726,799.20 : x - Step 2: Convert to fraction form
10,266,879.92/15,415,459.44 = 5,726,799.20/x - Step 3: Cross multiply
10,266,879.92x = 15,415,459.44 × 5,726,799.20 - Step 4: Simplify right side
10,266,879.92x = 88,281,240,788,624.45 - Step 5: Solve for x
x = 88,281,240,788,624.45/10,266,879.92 - Step 6: Final answer
x = 8,598,643.55
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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.