Finding the Fourth Proportional to 11,025,878.48, 15,215,724.77 and 6,130,995.42
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Solution
The fourth proportional to 11,025,878.48, 15,215,724.77 and 6,130,995.42 is: 8,460,780.61
Step by Step Solution
- Step 1: Write the proportion equation
11,025,878.48 : 15,215,724.77 = 6,130,995.42 : x - Step 2: Convert to fraction form
11,025,878.48/15,215,724.77 = 6,130,995.42/x - Step 3: Cross multiply
11,025,878.48x = 15,215,724.77 × 6,130,995.42 - Step 4: Simplify right side
11,025,878.48x = 93,287,538,876,850.55 - Step 5: Solve for x
x = 93,287,538,876,850.55/11,025,878.48 - Step 6: Final answer
x = 8,460,780.61
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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.