Finding the Fourth Proportional to 11,335,128.69, 15,642,633.02 and 6,178,479.15
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Solution
The fourth proportional to 11,335,128.69, 15,642,633.02 and 6,178,479.15 is: 8,526,385.95
Step by Step Solution
- Step 1: Write the proportion equation
11,335,128.69 : 15,642,633.02 = 6,178,479.15 : x - Step 2: Convert to fraction form
11,335,128.69/15,642,633.02 = 6,178,479.15/x - Step 3: Cross multiply
11,335,128.69x = 15,642,633.02 × 6,178,479.15 - Step 4: Simplify right side
11,335,128.69x = 96,647,681,957,448.44 - Step 5: Solve for x
x = 96,647,681,957,448.44/11,335,128.69 - Step 6: Final answer
x = 8,526,385.95
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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.