Finding the Fourth Proportional to 11,041,919.40, 15,238,544.82 and 6,691,386.12
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Solution
The fourth proportional to 11,041,919.40, 15,238,544.82 and 6,691,386.12 is: 9,234,534.65
Step by Step Solution
- Step 1: Write the proportion equation
11,041,919.40 : 15,238,544.82 = 6,691,386.12 : x - Step 2: Convert to fraction form
11,041,919.40/15,238,544.82 = 6,691,386.12/x - Step 3: Cross multiply
11,041,919.40x = 15,238,544.82 × 6,691,386.12 - Step 4: Simplify right side
11,041,919.40x = 101,966,987,297,545.91 - Step 5: Solve for x
x = 101,966,987,297,545.91/11,041,919.40 - Step 6: Final answer
x = 9,234,534.65
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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.