Finding the Fourth Proportional to 404,539,661.20, 606,809,491.80 and 361,457,510.80
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Solution
The fourth proportional to 404,539,661.20, 606,809,491.80 and 361,457,510.80 is: 542,186,266.20
Step by Step Solution
- Step 1: Write the proportion equation
404,539,661.20 : 606,809,491.80 = 361,457,510.80 : x - Step 2: Convert to fraction form
404,539,661.20/606,809,491.80 = 361,457,510.80/x - Step 3: Cross multiply
404,539,661.20x = 606,809,491.80 × 361,457,510.80 - Step 4: Simplify right side
404,539,661.20x = 219,335,848,435,840,992 - Step 5: Solve for x
x = 219,335,848,435,840,992/404,539,661.20 - Step 6: Final answer
x = 542,186,266.20
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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.