Finding the Fourth Proportional to 3,545,631.80, 5,315,337.30 and 2,126,252.60
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Solution
The fourth proportional to 3,545,631.80, 5,315,337.30 and 2,126,252.60 is: 3,187,513.65
Step by Step Solution
- Step 1: Write the proportion equation
3,545,631.80 : 5,315,337.30 = 2,126,252.60 : x - Step 2: Convert to fraction form
3,545,631.80/5,315,337.30 = 2,126,252.60/x - Step 3: Cross multiply
3,545,631.80x = 5,315,337.30 × 2,126,252.60 - Step 4: Simplify right side
3,545,631.80x = 11,301,749,754,001.98 - Step 5: Solve for x
x = 11,301,749,754,001.98/3,545,631.80 - Step 6: Final answer
x = 3,187,513.65
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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.