Finding the Fourth Proportional to 2,997,722.75, 4,134,242.99 and 2,124,830.91
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Solution
The fourth proportional to 2,997,722.75, 4,134,242.99 and 2,124,830.91 is: 2,930,413.52
Step by Step Solution
- Step 1: Write the proportion equation
2,997,722.75 : 4,134,242.99 = 2,124,830.91 : x - Step 2: Convert to fraction form
2,997,722.75/4,134,242.99 = 2,124,830.91/x - Step 3: Cross multiply
2,997,722.75x = 4,134,242.99 × 2,124,830.91 - Step 4: Simplify right side
2,997,722.75x = 8,784,567,283,978.67 - Step 5: Solve for x
x = 8,784,567,283,978.67/2,997,722.75 - Step 6: Final answer
x = 2,930,413.52
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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.