Finding the Fourth Proportional to 9,432,128.70, 14,148,193.05 and 4,314,548.70
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Solution
The fourth proportional to 9,432,128.70, 14,148,193.05 and 4,314,548.70 is: 6,471,823.05
Step by Step Solution
- Step 1: Write the proportion equation
9,432,128.70 : 14,148,193.05 = 4,314,548.70 : x - Step 2: Convert to fraction form
9,432,128.70/14,148,193.05 = 4,314,548.70/x - Step 3: Cross multiply
9,432,128.70x = 14,148,193.05 × 4,314,548.70 - Step 4: Simplify right side
9,432,128.70x = 61,043,067,931,226.54 - Step 5: Solve for x
x = 61,043,067,931,226.54/9,432,128.70 - Step 6: Final answer
x = 6,471,823.05
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Double scale
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Similar ratio
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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.