Finding the Fourth Proportional to 13,391,772.65, 18,482,091.11 and 7,589,931.60
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Solution
The fourth proportional to 13,391,772.65, 18,482,091.11 and 7,589,931.60 is: 10,474,924.50
Step by Step Solution
- Step 1: Write the proportion equation
13,391,772.65 : 18,482,091.11 = 7,589,931.60 : x - Step 2: Convert to fraction form
13,391,772.65/18,482,091.11 = 7,589,931.60/x - Step 3: Cross multiply
13,391,772.65x = 18,482,091.11 × 7,589,931.60 - Step 4: Simplify right side
13,391,772.65x = 140,277,807,311,918.42 - Step 5: Solve for x
x = 140,277,807,311,918.42/13,391,772.65 - Step 6: Final answer
x = 10,474,924.50
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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.