Finding the Fourth Proportional to 8,390,915.48, 11,576,184.68 and 4,718,990.32
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Solution
The fourth proportional to 8,390,915.48, 11,576,184.68 and 4,718,990.32 is: 6,510,362.73
Step by Step Solution
- Step 1: Write the proportion equation
8,390,915.48 : 11,576,184.68 = 4,718,990.32 : x - Step 2: Convert to fraction form
8,390,915.48/11,576,184.68 = 4,718,990.32/x - Step 3: Cross multiply
8,390,915.48x = 11,576,184.68 × 4,718,990.32 - Step 4: Simplify right side
8,390,915.48x = 54,627,903,447,452.30 - Step 5: Solve for x
x = 54,627,903,447,452.30/8,390,915.48 - Step 6: Final answer
x = 6,510,362.73
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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.