Finding the Fourth Proportional to 47,289,026.83, 70,936,532.79 and 19,990,230.65
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Solution
The fourth proportional to 47,289,026.83, 70,936,532.79 and 19,990,230.65 is: 29,986,611.00
Step by Step Solution
- Step 1: Write the proportion equation
47,289,026.83 : 70,936,532.79 = 19,990,230.65 : x - Step 2: Convert to fraction form
47,289,026.83/70,936,532.79 = 19,990,230.65/x - Step 3: Cross multiply
47,289,026.83x = 70,936,532.79 × 19,990,230.65 - Step 4: Simplify right side
47,289,026.83x = 1,418,037,652,160,729.50 - Step 5: Solve for x
x = 1,418,037,652,160,729.50/47,289,026.83 - Step 6: Final answer
x = 29,986,611.00
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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.