Finding the Fourth Proportional to 11,181,950.69, 15,431,117.84 and 6,287,215.05
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Solution
The fourth proportional to 11,181,950.69, 15,431,117.84 and 6,287,215.05 is: 8,676,371.33
Step by Step Solution
- Step 1: Write the proportion equation
11,181,950.69 : 15,431,117.84 = 6,287,215.05 : x - Step 2: Convert to fraction form
11,181,950.69/15,431,117.84 = 6,287,215.05/x - Step 3: Cross multiply
11,181,950.69x = 15,431,117.84 × 6,287,215.05 - Step 4: Simplify right side
11,181,950.69x = 97,018,756,329,113.22 - Step 5: Solve for x
x = 97,018,756,329,113.22/11,181,950.69 - Step 6: Final answer
x = 8,676,371.33
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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.