Finding the Fourth Proportional to 3,880,358.58, 5,354,899.79 and 2,114,248.53
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Solution
The fourth proportional to 3,880,358.58, 5,354,899.79 and 2,114,248.53 is: 2,917,665.67
Step by Step Solution
- Step 1: Write the proportion equation
3,880,358.58 : 5,354,899.79 = 2,114,248.53 : x - Step 2: Convert to fraction form
3,880,358.58/5,354,899.79 = 2,114,248.53/x - Step 3: Cross multiply
3,880,358.58x = 5,354,899.79 × 2,114,248.53 - Step 4: Simplify right side
3,880,358.58x = 11,321,588,998,733.56 - Step 5: Solve for x
x = 11,321,588,998,733.56/3,880,358.58 - Step 6: Final answer
x = 2,917,665.67
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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.