Finding the Fourth Proportional to 5,676,948.80, 8,515,423.20 and 5,117,076.80
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Solution
The fourth proportional to 5,676,948.80, 8,515,423.20 and 5,117,076.80 is: 7,675,615.20
Step by Step Solution
- Step 1: Write the proportion equation
5,676,948.80 : 8,515,423.20 = 5,117,076.80 : x - Step 2: Convert to fraction form
5,676,948.80/8,515,423.20 = 5,117,076.80/x - Step 3: Cross multiply
5,676,948.80x = 8,515,423.20 × 5,117,076.80 - Step 4: Simplify right side
5,676,948.80x = 43,574,074,498,901.76 - Step 5: Solve for x
x = 43,574,074,498,901.76/5,676,948.80 - Step 6: Final answer
x = 7,675,615.20
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Similar ratio
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1.5x scale
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.