Finding the Fourth Proportional to 8,207,987.76, 12,313,304.64 and 2,528,209.44
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Solution
The fourth proportional to 8,207,987.76, 12,313,304.64 and 2,528,209.44 is: 3,792,721.67
Step by Step Solution
- Step 1: Write the proportion equation
8,207,987.76 : 12,313,304.64 = 2,528,209.44 : x - Step 2: Convert to fraction form
8,207,987.76/12,313,304.64 = 2,528,209.44/x - Step 3: Cross multiply
8,207,987.76x = 12,313,304.64 × 2,528,209.44 - Step 4: Simplify right side
8,207,987.76x = 31,130,613,028,443.80 - Step 5: Solve for x
x = 31,130,613,028,443.80/8,207,987.76 - Step 6: Final answer
x = 3,792,721.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.