Finding the Fourth Proportional to 4,188,871.99, 5,781,112.55 and 2,535,930.19
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Solution
The fourth proportional to 4,188,871.99, 5,781,112.55 and 2,535,930.19 is: 3,499,867.72
Step by Step Solution
- Step 1: Write the proportion equation
4,188,871.99 : 5,781,112.55 = 2,535,930.19 : x - Step 2: Convert to fraction form
4,188,871.99/5,781,112.55 = 2,535,930.19/x - Step 3: Cross multiply
4,188,871.99x = 5,781,112.55 × 2,535,930.19 - Step 4: Simplify right side
4,188,871.99x = 14,660,497,847,332.88 - Step 5: Solve for x
x = 14,660,497,847,332.88/4,188,871.99 - Step 6: Final answer
x = 3,499,867.72
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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.