Finding the Fourth Proportional to 7,240,247.32, 9,990,958.62 and 4,184,659.48
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Solution
The fourth proportional to 7,240,247.32, 9,990,958.62 and 4,184,659.48 is: 5,774,493.31
Step by Step Solution
- Step 1: Write the proportion equation
7,240,247.32 : 9,990,958.62 = 4,184,659.48 : x - Step 2: Convert to fraction form
7,240,247.32/9,990,958.62 = 4,184,659.48/x - Step 3: Cross multiply
7,240,247.32x = 9,990,958.62 × 4,184,659.48 - Step 4: Simplify right side
7,240,247.32x = 41,808,759,703,470.71 - Step 5: Solve for x
x = 41,808,759,703,470.71/7,240,247.32 - Step 6: Final answer
x = 5,774,493.31
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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.