Finding the Fourth Proportional to 3,759,925.57, 5,188,712.87 and 2,128,647.74
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Solution
The fourth proportional to 3,759,925.57, 5,188,712.87 and 2,128,647.74 is: 2,937,542.70
Step by Step Solution
- Step 1: Write the proportion equation
3,759,925.57 : 5,188,712.87 = 2,128,647.74 : x - Step 2: Convert to fraction form
3,759,925.57/5,188,712.87 = 2,128,647.74/x - Step 3: Cross multiply
3,759,925.57x = 5,188,712.87 × 2,128,647.74 - Step 4: Simplify right side
3,759,925.57x = 11,044,941,924,234.42 - Step 5: Solve for x
x = 11,044,941,924,234.42/3,759,925.57 - Step 6: Final answer
x = 2,937,542.70
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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.