Finding the Fourth Proportional to 12,077,416.60, 18,102,128.10 and 4,885,394.20
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Solution
The fourth proportional to 12,077,416.60, 18,102,128.10 and 4,885,394.20 is: 7,322,429.50
Step by Step Solution
- Step 1: Write the proportion equation
12,077,416.60 : 18,102,128.10 = 4,885,394.20 : x - Step 2: Convert to fraction form
12,077,416.60/18,102,128.10 = 4,885,394.20/x - Step 3: Cross multiply
12,077,416.60x = 18,102,128.10 × 4,885,394.20 - Step 4: Simplify right side
12,077,416.60x = 88,436,031,627,397.03 - Step 5: Solve for x
x = 88,436,031,627,397.03/12,077,416.60 - Step 6: Final answer
x = 7,322,429.50
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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.