Finding the Fourth Proportional to 20,226,278.67, 30,343,617.05 and 6,762,756.75
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Solution
The fourth proportional to 20,226,278.67, 30,343,617.05 and 6,762,756.75 is: 10,145,539.09
Step by Step Solution
- Step 1: Write the proportion equation
20,226,278.67 : 30,343,617.05 = 6,762,756.75 : x - Step 2: Convert to fraction form
20,226,278.67/30,343,617.05 = 6,762,756.75/x - Step 3: Cross multiply
20,226,278.67x = 30,343,617.05 × 6,762,756.75 - Step 4: Simplify right side
20,226,278.67x = 205,206,500,990,488.81 - Step 5: Solve for x
x = 205,206,500,990,488.81/20,226,278.67 - Step 6: Final answer
x = 10,145,539.09
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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.