Finding the Fourth Proportional to 13,920,760.36, 19,206,344.58 and 8,115,432.04
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Solution
The fourth proportional to 13,920,760.36, 19,206,344.58 and 8,115,432.04 is: 11,196,786.68
Step by Step Solution
- Step 1: Write the proportion equation
13,920,760.36 : 19,206,344.58 = 8,115,432.04 : x - Step 2: Convert to fraction form
13,920,760.36/19,206,344.58 = 8,115,432.04/x - Step 3: Cross multiply
13,920,760.36x = 19,206,344.58 × 8,115,432.04 - Step 4: Simplify right side
13,920,760.36x = 155,867,784,175,812.34 - Step 5: Solve for x
x = 155,867,784,175,812.34/13,920,760.36 - Step 6: Final answer
x = 11,196,786.68
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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.