Finding the Fourth Proportional to 7,170,319.02, 9,894,912.75 and 3,907,156.62
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Solution
The fourth proportional to 7,170,319.02, 9,894,912.75 and 3,907,156.62 is: 5,391,806.66
Step by Step Solution
- Step 1: Write the proportion equation
7,170,319.02 : 9,894,912.75 = 3,907,156.62 : x - Step 2: Convert to fraction form
7,170,319.02/9,894,912.75 = 3,907,156.62/x - Step 3: Cross multiply
7,170,319.02x = 9,894,912.75 × 3,907,156.62 - Step 4: Simplify right side
7,170,319.02x = 38,660,973,855,484.91 - Step 5: Solve for x
x = 38,660,973,855,484.91/7,170,319.02 - Step 6: Final answer
x = 5,391,806.66
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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.