Finding the Fourth Proportional to 28,658,479.92, 39,548,704.92 and 15,605,735.04
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Solution
The fourth proportional to 28,658,479.92, 39,548,704.92 and 15,605,735.04 is: 21,535,915.79
Step by Step Solution
- Step 1: Write the proportion equation
28,658,479.92 : 39,548,704.92 = 15,605,735.04 : x - Step 2: Convert to fraction form
28,658,479.92/39,548,704.92 = 15,605,735.04/x - Step 3: Cross multiply
28,658,479.92x = 39,548,704.92 × 15,605,735.04 - Step 4: Simplify right side
28,658,479.92x = 617,186,610,156,664.38 - Step 5: Solve for x
x = 617,186,610,156,664.38/28,658,479.92 - Step 6: Final answer
x = 21,535,915.79
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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.