Finding the Fourth Proportional to 8,975,232.78, 12,469,438.26 and 8,867,615.98
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Solution
The fourth proportional to 8,975,232.78, 12,469,438.26 and 8,867,615.98 is: 12,319,924.47
Step by Step Solution
- Step 1: Write the proportion equation
8,975,232.78 : 12,469,438.26 = 8,867,615.98 : x - Step 2: Convert to fraction form
8,975,232.78/12,469,438.26 = 8,867,615.98/x - Step 3: Cross multiply
8,975,232.78x = 12,469,438.26 × 8,867,615.98 - Step 4: Simplify right side
8,975,232.78x = 110,574,189,931,661.33 - Step 5: Solve for x
x = 110,574,189,931,661.33/8,975,232.78 - Step 6: Final answer
x = 12,319,924.47
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.