Finding the Fourth Proportional to 7,518,489.65, 10,394,490.56 and 5,555,271.28
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Solution
The fourth proportional to 7,518,489.65, 10,394,490.56 and 5,555,271.28 is: 7,680,294.53
Step by Step Solution
- Step 1: Write the proportion equation
7,518,489.65 : 10,394,490.56 = 5,555,271.28 : x - Step 2: Convert to fraction form
7,518,489.65/10,394,490.56 = 5,555,271.28/x - Step 3: Cross multiply
7,518,489.65x = 10,394,490.56 × 5,555,271.28 - Step 4: Simplify right side
7,518,489.65x = 57,744,214,892,087.30 - Step 5: Solve for x
x = 57,744,214,892,087.30/7,518,489.65 - Step 6: Final answer
x = 7,680,294.53
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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.