Finding the Fourth Proportional to 5,274,627.36, 7,911,857.76 and 1,680,363.60
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Solution
The fourth proportional to 5,274,627.36, 7,911,857.76 and 1,680,363.60 is: 2,520,518.87
Step by Step Solution
- Step 1: Write the proportion equation
5,274,627.36 : 7,911,857.76 = 1,680,363.60 : x - Step 2: Convert to fraction form
5,274,627.36/7,911,857.76 = 1,680,363.60/x - Step 3: Cross multiply
5,274,627.36x = 7,911,857.76 × 1,680,363.60 - Step 4: Simplify right side
5,274,627.36x = 13,294,797,788,281.54 - Step 5: Solve for x
x = 13,294,797,788,281.54/5,274,627.36 - Step 6: Final answer
x = 2,520,518.87
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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.