Finding the Fourth Proportional to 5,162,988.71, 7,125,058.80 and 2,839,941.08
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Solution
The fourth proportional to 5,162,988.71, 7,125,058.80 and 2,839,941.08 is: 3,919,192.60
Step by Step Solution
- Step 1: Write the proportion equation
5,162,988.71 : 7,125,058.80 = 2,839,941.08 : x - Step 2: Convert to fraction form
5,162,988.71/7,125,058.80 = 2,839,941.08/x - Step 3: Cross multiply
5,162,988.71x = 7,125,058.80 × 2,839,941.08 - Step 4: Simplify right side
5,162,988.71x = 20,234,747,147,910.21 - Step 5: Solve for x
x = 20,234,747,147,910.21/5,162,988.71 - Step 6: Final answer
x = 3,919,192.60
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1.5x scale
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.