Finding the Fourth Proportional to 12,649,617.80, 18,974,426.70 and 3,194,001.80
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Solution
The fourth proportional to 12,649,617.80, 18,974,426.70 and 3,194,001.80 is: 4,791,002.70
Step by Step Solution
- Step 1: Write the proportion equation
12,649,617.80 : 18,974,426.70 = 3,194,001.80 : x - Step 2: Convert to fraction form
12,649,617.80/18,974,426.70 = 3,194,001.80/x - Step 3: Cross multiply
12,649,617.80x = 18,974,426.70 × 3,194,001.80 - Step 4: Simplify right side
12,649,617.80x = 60,604,353,033,768.05 - Step 5: Solve for x
x = 60,604,353,033,768.05/12,649,617.80 - Step 6: Final answer
x = 4,791,002.70
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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.