Finding the Fourth Proportional to 13,610,125.80, 18,782,311.86 and 8,381,154.60
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Solution
The fourth proportional to 13,610,125.80, 18,782,311.86 and 8,381,154.60 is: 11,566,201.65
Step by Step Solution
- Step 1: Write the proportion equation
13,610,125.80 : 18,782,311.86 = 8,381,154.60 : x - Step 2: Convert to fraction form
13,610,125.80/18,782,311.86 = 8,381,154.60/x - Step 3: Cross multiply
13,610,125.80x = 18,782,311.86 × 8,381,154.60 - Step 4: Simplify right side
13,610,125.80x = 157,417,459,444,073.53 - Step 5: Solve for x
x = 157,417,459,444,073.53/13,610,125.80 - Step 6: Final answer
x = 11,566,201.65
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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.