Finding the Fourth Proportional to 1,088,675,941.80, 1,633,013,912.70 and 398,353,765.80
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Solution
The fourth proportional to 1,088,675,941.80, 1,633,013,912.70 and 398,353,765.80 is: 597,530,648.70
Step by Step Solution
- Step 1: Write the proportion equation
1,088,675,941.80 : 1,633,013,912.70 = 398,353,765.80 : x - Step 2: Convert to fraction form
1,088,675,941.80/1,633,013,912.70 = 398,353,765.80/x - Step 3: Cross multiply
1,088,675,941.80x = 1,633,013,912.70 × 398,353,765.80 - Step 4: Simplify right side
1,088,675,941.80x = 650,517,241,727,837,440 - Step 5: Solve for x
x = 650,517,241,727,837,440/1,088,675,941.80 - Step 6: Final answer
x = 597,530,648.70
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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.