Finding the Fourth Proportional to 9,153,128.67, 12,630,482.66 and 5,431,318.26
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Solution
The fourth proportional to 9,153,128.67, 12,630,482.66 and 5,431,318.26 is: 7,494,723.78
Step by Step Solution
- Step 1: Write the proportion equation
9,153,128.67 : 12,630,482.66 = 5,431,318.26 : x - Step 2: Convert to fraction form
9,153,128.67/12,630,482.66 = 5,431,318.26/x - Step 3: Cross multiply
9,153,128.67x = 12,630,482.66 × 5,431,318.26 - Step 4: Simplify right side
9,153,128.67x = 68,600,171,103,871.37 - Step 5: Solve for x
x = 68,600,171,103,871.37/9,153,128.67 - Step 6: Final answer
x = 7,494,723.78
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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.