Finding the Fourth Proportional to 20,891,027.98, 31,334,684.10 and 7,243,868.80
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Solution
The fourth proportional to 20,891,027.98, 31,334,684.10 and 7,243,868.80 is: 10,865,158.99
Step by Step Solution
- Step 1: Write the proportion equation
20,891,027.98 : 31,334,684.10 = 7,243,868.80 : x - Step 2: Convert to fraction form
20,891,027.98/31,334,684.10 = 7,243,868.80/x - Step 3: Cross multiply
20,891,027.98x = 31,334,684.10 × 7,243,868.80 - Step 4: Simplify right side
20,891,027.98x = 226,984,340,509,846.09 - Step 5: Solve for x
x = 226,984,340,509,846.09/20,891,027.98 - Step 6: Final answer
x = 10,865,158.99
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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.