Finding the Fourth Proportional to 4,154,917.49, 6,220,898.58 and 2,128,798.68
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Solution
The fourth proportional to 4,154,917.49, 6,220,898.58 and 2,128,798.68 is: 3,187,317.37
Step by Step Solution
- Step 1: Write the proportion equation
4,154,917.49 : 6,220,898.58 = 2,128,798.68 : x - Step 2: Convert to fraction form
4,154,917.49/6,220,898.58 = 2,128,798.68/x - Step 3: Cross multiply
4,154,917.49x = 6,220,898.58 × 2,128,798.68 - Step 4: Simplify right side
4,154,917.49x = 13,243,040,685,517.88 - Step 5: Solve for x
x = 13,243,040,685,517.88/4,154,917.49 - Step 6: Final answer
x = 3,187,317.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.