Finding the Fourth Proportional to 19,347,711.84, 29,020,611.22 and 7,216,230.24
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Solution
The fourth proportional to 19,347,711.84, 29,020,611.22 and 7,216,230.24 is: 10,823,988.59
Step by Step Solution
- Step 1: Write the proportion equation
19,347,711.84 : 29,020,611.22 = 7,216,230.24 : x - Step 2: Convert to fraction form
19,347,711.84/29,020,611.22 = 7,216,230.24/x - Step 3: Cross multiply
19,347,711.84x = 29,020,611.22 × 7,216,230.24 - Step 4: Simplify right side
19,347,711.84x = 209,419,412,269,047.28 - Step 5: Solve for x
x = 209,419,412,269,047.28/19,347,711.84 - Step 6: Final answer
x = 10,823,988.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.