Finding the Fourth Proportional to 5,221,739.54, 7,830,835.50 and 1,809,229.66
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Solution
The fourth proportional to 5,221,739.54, 7,830,835.50 and 1,809,229.66 is: 2,713,229.90
Step by Step Solution
- Step 1: Write the proportion equation
5,221,739.54 : 7,830,835.50 = 1,809,229.66 : x - Step 2: Convert to fraction form
5,221,739.54/7,830,835.50 = 1,809,229.66/x - Step 3: Cross multiply
5,221,739.54x = 7,830,835.50 × 1,809,229.66 - Step 4: Simplify right side
5,221,739.54x = 14,167,779,849,180.93 - Step 5: Solve for x
x = 14,167,779,849,180.93/5,221,739.54 - Step 6: Final answer
x = 2,713,229.90
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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.