Finding the Fourth Proportional to 125,213,193.60, 187,819,790.40 and 86,246,102.40
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Solution
The fourth proportional to 125,213,193.60, 187,819,790.40 and 86,246,102.40 is: 129,369,153.60
Step by Step Solution
- Step 1: Write the proportion equation
125,213,193.60 : 187,819,790.40 = 86,246,102.40 : x - Step 2: Convert to fraction form
125,213,193.60/187,819,790.40 = 86,246,102.40/x - Step 3: Cross multiply
125,213,193.60x = 187,819,790.40 × 86,246,102.40 - Step 4: Simplify right side
125,213,193.60x = 16,198,724,875,584,938 - Step 5: Solve for x
x = 16,198,724,875,584,938/125,213,193.60 - Step 6: Final answer
x = 129,369,153.60
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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.