Finding the Fourth Proportional to 7,047,630.99, 9,725,998.10 and 3,950,211.58
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Solution
The fourth proportional to 7,047,630.99, 9,725,998.10 and 3,950,211.58 is: 5,451,441.82
Step by Step Solution
- Step 1: Write the proportion equation
7,047,630.99 : 9,725,998.10 = 3,950,211.58 : x - Step 2: Convert to fraction form
7,047,630.99/9,725,998.10 = 3,950,211.58/x - Step 3: Cross multiply
7,047,630.99x = 9,725,998.10 × 3,950,211.58 - Step 4: Simplify right side
7,047,630.99x = 38,419,750,321,678 - Step 5: Solve for x
x = 38,419,750,321,678/7,047,630.99 - Step 6: Final answer
x = 5,451,441.82
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1.5x scale
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.