Finding the Fourth Proportional to 19,949,274.11, 29,923,911.20 and 9,175,636.44
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Solution
The fourth proportional to 19,949,274.11, 29,923,911.20 and 9,175,636.44 is: 13,763,454.68
Step by Step Solution
- Step 1: Write the proportion equation
19,949,274.11 : 29,923,911.20 = 9,175,636.44 : x - Step 2: Convert to fraction form
19,949,274.11/29,923,911.20 = 9,175,636.44/x - Step 3: Cross multiply
19,949,274.11x = 29,923,911.20 × 9,175,636.44 - Step 4: Simplify right side
19,949,274.11x = 274,570,930,056,983.22 - Step 5: Solve for x
x = 274,570,930,056,983.22/19,949,274.11 - Step 6: Final answer
x = 13,763,454.68
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1.5x scale
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.