Finding the Fourth Proportional to 5,361,639.48, 7,402,625.58 and 4,119,036.78
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Solution
The fourth proportional to 5,361,639.48, 7,402,625.58 and 4,119,036.78 is: 5,687,008.08
Step by Step Solution
- Step 1: Write the proportion equation
5,361,639.48 : 7,402,625.58 = 4,119,036.78 : x - Step 2: Convert to fraction form
5,361,639.48/7,402,625.58 = 4,119,036.78/x - Step 3: Cross multiply
5,361,639.48x = 7,402,625.58 × 4,119,036.78 - Step 4: Simplify right side
5,361,639.48x = 30,491,687,032,588.83 - Step 5: Solve for x
x = 30,491,687,032,588.83/5,361,639.48 - Step 6: Final answer
x = 5,687,008.08
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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.