Finding the Fourth Proportional to 13,700,541.99, 18,906,746.37 and 8,193,915.96
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Solution
The fourth proportional to 13,700,541.99, 18,906,746.37 and 8,193,915.96 is: 11,307,603.08
Step by Step Solution
- Step 1: Write the proportion equation
13,700,541.99 : 18,906,746.37 = 8,193,915.96 : x - Step 2: Convert to fraction form
13,700,541.99/18,906,746.37 = 8,193,915.96/x - Step 3: Cross multiply
13,700,541.99x = 18,906,746.37 × 8,193,915.96 - Step 4: Simplify right side
13,700,541.99x = 154,920,290,832,815.06 - Step 5: Solve for x
x = 154,920,290,832,815.06/13,700,541.99 - Step 6: Final answer
x = 11,307,603.08
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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.