Finding the Fourth Proportional to 1,358,629,243.40, 2,037,943,865.10 and 868,853,217.80
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Solution
The fourth proportional to 1,358,629,243.40, 2,037,943,865.10 and 868,853,217.80 is: 1,303,279,826.70
Step by Step Solution
- Step 1: Write the proportion equation
1,358,629,243.40 : 2,037,943,865.10 = 868,853,217.80 : x - Step 2: Convert to fraction form
1,358,629,243.40/2,037,943,865.10 = 868,853,217.80/x - Step 3: Cross multiply
1,358,629,243.40x = 2,037,943,865.10 × 868,853,217.80 - Step 4: Simplify right side
1,358,629,243.40x = 1,770,674,084,887,904,000 - Step 5: Solve for x
x = 1,770,674,084,887,904,000/1,358,629,243.40 - Step 6: Final answer
x = 1,303,279,826.70
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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.