Finding the Fourth Proportional to 11,236,873.99, 15,517,364.84 and 8,270,685.78
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Solution
The fourth proportional to 11,236,873.99, 15,517,364.84 and 8,270,685.78 is: 11,421,259.05
Step by Step Solution
- Step 1: Write the proportion equation
11,236,873.99 : 15,517,364.84 = 8,270,685.78 : x - Step 2: Convert to fraction form
11,236,873.99/15,517,364.84 = 8,270,685.78/x - Step 3: Cross multiply
11,236,873.99x = 15,517,364.84 × 8,270,685.78 - Step 4: Simplify right side
11,236,873.99x = 128,339,248,725,259.98 - Step 5: Solve for x
x = 128,339,248,725,259.98/11,236,873.99 - Step 6: Final answer
x = 11,421,259.05
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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.