Finding the Fourth Proportional to 6,405,354,138.80, 9,608,031,208.20 and 3,925,863,009.20
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Solution
The fourth proportional to 6,405,354,138.80, 9,608,031,208.20 and 3,925,863,009.20 is: 5,888,794,513.80
Step by Step Solution
- Step 1: Write the proportion equation
6,405,354,138.80 : 9,608,031,208.20 = 3,925,863,009.20 : x - Step 2: Convert to fraction form
6,405,354,138.80/9,608,031,208.20 = 3,925,863,009.20/x - Step 3: Cross multiply
6,405,354,138.80x = 9,608,031,208.20 × 3,925,863,009.20 - Step 4: Simplify right side
6,405,354,138.80x = 37,719,814,311,511,564,288 - Step 5: Solve for x
x = 37,719,814,311,511,564,288/6,405,354,138.80 - Step 6: Final answer
x = 5,888,794,513.80
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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.