Finding the Fourth Proportional to 18,846,332.20, 28,271,126.58 and 5,199,478.60
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Solution
The fourth proportional to 18,846,332.20, 28,271,126.58 and 5,199,478.60 is: 7,799,667.12
Step by Step Solution
- Step 1: Write the proportion equation
18,846,332.20 : 28,271,126.58 = 5,199,478.60 : x - Step 2: Convert to fraction form
18,846,332.20/28,271,126.58 = 5,199,478.60/x - Step 3: Cross multiply
18,846,332.20x = 28,271,126.58 × 5,199,478.60 - Step 4: Simplify right side
18,846,332.20x = 146,995,117,650,601.16 - Step 5: Solve for x
x = 146,995,117,650,601.16/18,846,332.20 - Step 6: Final answer
x = 7,799,667.12
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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.