Finding the Fourth Proportional to 10,778,421.80, 16,167,632.70 and 9,361,245.80
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Solution
The fourth proportional to 10,778,421.80, 16,167,632.70 and 9,361,245.80 is: 14,041,868.70
Step by Step Solution
- Step 1: Write the proportion equation
10,778,421.80 : 16,167,632.70 = 9,361,245.80 : x - Step 2: Convert to fraction form
10,778,421.80/16,167,632.70 = 9,361,245.80/x - Step 3: Cross multiply
10,778,421.80x = 16,167,632.70 × 9,361,245.80 - Step 4: Simplify right side
10,778,421.80x = 151,349,183,708,817.66 - Step 5: Solve for x
x = 151,349,183,708,817.66/10,778,421.80 - Step 6: Final answer
x = 14,041,868.70
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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.