Finding the Fourth Proportional to 587,202,956.20, 880,776,440.70 and 198,987,711.40
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Solution
The fourth proportional to 587,202,956.20, 880,776,440.70 and 198,987,711.40 is: 298,472,080.80
Step by Step Solution
- Step 1: Write the proportion equation
587,202,956.20 : 880,776,440.70 = 198,987,711.40 : x - Step 2: Convert to fraction form
587,202,956.20/880,776,440.70 = 198,987,711.40/x - Step 3: Cross multiply
587,202,956.20x = 880,776,440.70 × 198,987,711.40 - Step 4: Simplify right side
587,202,956.20x = 175,263,688,189,930,816 - Step 5: Solve for x
x = 175,263,688,189,930,816/587,202,956.20 - Step 6: Final answer
x = 298,472,080.80
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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.