Finding the Fourth Proportional to 2,121,228.37, 2,930,246.99 and 2,042,483.95
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Solution
The fourth proportional to 2,121,228.37, 2,930,246.99 and 2,042,483.95 is: 2,821,470.11
Step by Step Solution
- Step 1: Write the proportion equation
2,121,228.37 : 2,930,246.99 = 2,042,483.95 : x - Step 2: Convert to fraction form
2,121,228.37/2,930,246.99 = 2,042,483.95/x - Step 3: Cross multiply
2,121,228.37x = 2,930,246.99 × 2,042,483.95 - Step 4: Simplify right side
2,121,228.37x = 5,984,982,446,610.81 - Step 5: Solve for x
x = 5,984,982,446,610.81/2,121,228.37 - Step 6: Final answer
x = 2,821,470.11
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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.