Finding the Fourth Proportional to 1,116,650,138.40, 1,675,038,193.20 and 340,321,125.60
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Solution
The fourth proportional to 1,116,650,138.40, 1,675,038,193.20 and 340,321,125.60 is: 510,500,884.50
Step by Step Solution
- Step 1: Write the proportion equation
1,116,650,138.40 : 1,675,038,193.20 = 340,321,125.60 : x - Step 2: Convert to fraction form
1,116,650,138.40/1,675,038,193.20 = 340,321,125.60/x - Step 3: Cross multiply
1,116,650,138.40x = 1,675,038,193.20 × 340,321,125.60 - Step 4: Simplify right side
1,116,650,138.40x = 570,050,883,332,814,336 - Step 5: Solve for x
x = 570,050,883,332,814,336/1,116,650,138.40 - Step 6: Final answer
x = 510,500,884.50
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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.