Finding the Fourth Proportional to 10,515,118.20, 15,763,929.30 and 4,454,503.80
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Solution
The fourth proportional to 10,515,118.20, 15,763,929.30 and 4,454,503.80 is: 6,678,049.80
Step by Step Solution
- Step 1: Write the proportion equation
10,515,118.20 : 15,763,929.30 = 4,454,503.80 : x - Step 2: Convert to fraction form
10,515,118.20/15,763,929.30 = 4,454,503.80/x - Step 3: Cross multiply
10,515,118.20x = 15,763,929.30 × 4,454,503.80 - Step 4: Simplify right side
10,515,118.20x = 70,220,482,969,781.34 - Step 5: Solve for x
x = 70,220,482,969,781.34/10,515,118.20 - Step 6: Final answer
x = 6,678,049.80
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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.