Finding the Fourth Proportional to 11,379,536.76, 15,703,609.68 and 6,485,050.20
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Solution
The fourth proportional to 11,379,536.76, 15,703,609.68 and 6,485,050.20 is: 8,949,283.20
Step by Step Solution
- Step 1: Write the proportion equation
11,379,536.76 : 15,703,609.68 = 6,485,050.20 : x - Step 2: Convert to fraction form
11,379,536.76/15,703,609.68 = 6,485,050.20/x - Step 3: Cross multiply
11,379,536.76x = 15,703,609.68 × 6,485,050.20 - Step 4: Simplify right side
11,379,536.76x = 101,838,697,096,005.94 - Step 5: Solve for x
x = 101,838,697,096,005.94/11,379,536.76 - Step 6: Final answer
x = 8,949,283.20
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1.5x scale
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.