Finding the Fourth Proportional to 3,132,515.80, 4,698,773.70 and 2,137,187.80
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Solution
The fourth proportional to 3,132,515.80, 4,698,773.70 and 2,137,187.80 is: 3,205,781.70
Step by Step Solution
- Step 1: Write the proportion equation
3,132,515.80 : 4,698,773.70 = 2,137,187.80 : x - Step 2: Convert to fraction form
3,132,515.80/4,698,773.70 = 2,137,187.80/x - Step 3: Cross multiply
3,132,515.80x = 4,698,773.70 × 2,137,187.80 - Step 4: Simplify right side
3,132,515.80x = 10,042,161,826,600.86 - Step 5: Solve for x
x = 10,042,161,826,600.86/3,132,515.80 - Step 6: Final answer
x = 3,205,781.70
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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.