Finding the Fourth Proportional to 11,279,498.68, 15,565,727.91 and 6,122,863.72
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Solution
The fourth proportional to 11,279,498.68, 15,565,727.91 and 6,122,863.72 is: 8,449,562.64
Step by Step Solution
- Step 1: Write the proportion equation
11,279,498.68 : 15,565,727.91 = 6,122,863.72 : x - Step 2: Convert to fraction form
11,279,498.68/15,565,727.91 = 6,122,863.72/x - Step 3: Cross multiply
11,279,498.68x = 15,565,727.91 × 6,122,863.72 - Step 4: Simplify right side
11,279,498.68x = 95,306,830,695,530.42 - Step 5: Solve for x
x = 95,306,830,695,530.42/11,279,498.68 - Step 6: Final answer
x = 8,449,562.64
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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.