Finding the Fourth Proportional to 8,917,556.58, 12,306,251.70 and 5,246,611.47
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Solution
The fourth proportional to 8,917,556.58, 12,306,251.70 and 5,246,611.47 is: 7,240,337.73
Step by Step Solution
- Step 1: Write the proportion equation
8,917,556.58 : 12,306,251.70 = 5,246,611.47 : x - Step 2: Convert to fraction form
8,917,556.58/12,306,251.70 = 5,246,611.47/x - Step 3: Cross multiply
8,917,556.58x = 12,306,251.70 × 5,246,611.47 - Step 4: Simplify right side
8,917,556.58x = 64,566,121,321,926.99 - Step 5: Solve for x
x = 64,566,121,321,926.99/8,917,556.58 - Step 6: Final answer
x = 7,240,337.73
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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.