Finding the Fourth Proportional to 10,948,943.20, 16,392,310.80 and 10,353,128.80
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Solution
The fourth proportional to 10,948,943.20, 16,392,310.80 and 10,353,128.80 is: 15,500,281.80
Step by Step Solution
- Step 1: Write the proportion equation
10,948,943.20 : 16,392,310.80 = 10,353,128.80 : x - Step 2: Convert to fraction form
10,948,943.20/16,392,310.80 = 10,353,128.80/x - Step 3: Cross multiply
10,948,943.20x = 16,392,310.80 × 10,353,128.80 - Step 4: Simplify right side
10,948,943.20x = 169,711,705,042,031.06 - Step 5: Solve for x
x = 169,711,705,042,031.06/10,948,943.20 - Step 6: Final answer
x = 15,500,281.80
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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.