Finding the Fourth Proportional to 7,826,982.99, 10,796,660.72 and 4,921,774.35
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Solution
The fourth proportional to 7,826,982.99, 10,796,660.72 and 4,921,774.35 is: 6,789,171.24
Step by Step Solution
- Step 1: Write the proportion equation
7,826,982.99 : 10,796,660.72 = 4,921,774.35 : x - Step 2: Convert to fraction form
7,826,982.99/10,796,660.72 = 4,921,774.35/x - Step 3: Cross multiply
7,826,982.99x = 10,796,660.72 × 4,921,774.35 - Step 4: Simplify right side
7,826,982.99x = 53,138,727,772,739.66 - Step 5: Solve for x
x = 53,138,727,772,739.66/7,826,982.99 - Step 6: Final answer
x = 6,789,171.24
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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.