Finding the Fourth Proportional to 12,318,575.18, 16,999,743.79 and 6,812,320.64
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Solution
The fourth proportional to 12,318,575.18, 16,999,743.79 and 6,812,320.64 is: 9,401,063.33
Step by Step Solution
- Step 1: Write the proportion equation
12,318,575.18 : 16,999,743.79 = 6,812,320.64 : x - Step 2: Convert to fraction form
12,318,575.18/16,999,743.79 = 6,812,320.64/x - Step 3: Cross multiply
12,318,575.18x = 16,999,743.79 × 6,812,320.64 - Step 4: Simplify right side
12,318,575.18x = 115,807,705,435,798.67 - Step 5: Solve for x
x = 115,807,705,435,798.67/12,318,575.18 - Step 6: Final answer
x = 9,401,063.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.