Finding the Fourth Proportional to 20,757,230.66, 31,138,823.28 and 6,381,505.64
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Solution
The fourth proportional to 20,757,230.66, 31,138,823.28 and 6,381,505.64 is: 9,573,173.78
Step by Step Solution
- Step 1: Write the proportion equation
20,757,230.66 : 31,138,823.28 = 6,381,505.64 : x - Step 2: Convert to fraction form
20,757,230.66/31,138,823.28 = 6,381,505.64/x - Step 3: Cross multiply
20,757,230.66x = 31,138,823.28 × 6,381,505.64 - Step 4: Simplify right side
20,757,230.66x = 198,712,576,384,283.28 - Step 5: Solve for x
x = 198,712,576,384,283.28/20,757,230.66 - Step 6: Final answer
x = 9,573,173.78
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.