Finding the Fourth Proportional to 8,318,811.81, 11,477,992.08 and 4,832,079.21
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Solution
The fourth proportional to 8,318,811.81, 11,477,992.08 and 4,832,079.21 is: 6,667,126.05
Step by Step Solution
- Step 1: Write the proportion equation
8,318,811.81 : 11,477,992.08 = 4,832,079.21 : x - Step 2: Convert to fraction form
8,318,811.81/11,477,992.08 = 4,832,079.21/x - Step 3: Cross multiply
8,318,811.81x = 11,477,992.08 × 4,832,079.21 - Step 4: Simplify right side
8,318,811.81x = 55,462,566,902,312.66 - Step 5: Solve for x
x = 55,462,566,902,312.66/8,318,811.81 - Step 6: Final answer
x = 6,667,126.05
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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.