Finding the Fourth Proportional to 13,687,803.68, 18,887,191.84 and 7,576,217.60
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Solution
The fourth proportional to 13,687,803.68, 18,887,191.84 and 7,576,217.60 is: 10,454,085.88
Step by Step Solution
- Step 1: Write the proportion equation
13,687,803.68 : 18,887,191.84 = 7,576,217.60 : x - Step 2: Convert to fraction form
13,687,803.68/18,887,191.84 = 7,576,217.60/x - Step 3: Cross multiply
13,687,803.68x = 18,887,191.84 × 7,576,217.60 - Step 4: Simplify right side
13,687,803.68x = 143,093,475,232,784.38 - Step 5: Solve for x
x = 143,093,475,232,784.38/13,687,803.68 - Step 6: Final answer
x = 10,454,085.88
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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.