Finding the Fourth Proportional to 12,216,381.65, 18,318,304.29 and 6,462,221.03
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Solution
The fourth proportional to 12,216,381.65, 18,318,304.29 and 6,462,221.03 is: 9,690,015.80
Step by Step Solution
- Step 1: Write the proportion equation
12,216,381.65 : 18,318,304.29 = 6,462,221.03 : x - Step 2: Convert to fraction form
12,216,381.65/18,318,304.29 = 6,462,221.03/x - Step 3: Cross multiply
12,216,381.65x = 18,318,304.29 × 6,462,221.03 - Step 4: Simplify right side
12,216,381.65x = 118,376,931,216,777.22 - Step 5: Solve for x
x = 118,376,931,216,777.22/12,216,381.65 - Step 6: Final answer
x = 9,690,015.80
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1.5x scale
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.