Finding the Fourth Proportional to 7,777,457.70, 11,666,186.55 and 7,462,529.70
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Solution
The fourth proportional to 7,777,457.70, 11,666,186.55 and 7,462,529.70 is: 11,193,794.55
Step by Step Solution
- Step 1: Write the proportion equation
7,777,457.70 : 11,666,186.55 = 7,462,529.70 : x - Step 2: Convert to fraction form
7,777,457.70/11,666,186.55 = 7,462,529.70/x - Step 3: Cross multiply
7,777,457.70x = 11,666,186.55 × 7,462,529.70 - Step 4: Simplify right side
7,777,457.70x = 87,059,263,615,115.55 - Step 5: Solve for x
x = 87,059,263,615,115.55/7,777,457.70 - Step 6: Final answer
x = 11,193,794.55
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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.