Finding the Fourth Proportional to 1,889,392,312.92, 2,834,078,377.58 and 490,375,563.19
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Solution
The fourth proportional to 1,889,392,312.92, 2,834,078,377.58 and 490,375,563.19 is: 735,560,725.55
Step by Step Solution
- Step 1: Write the proportion equation
1,889,392,312.92 : 2,834,078,377.58 = 490,375,563.19 : x - Step 2: Convert to fraction form
1,889,392,312.92/2,834,078,377.58 = 490,375,563.19/x - Step 3: Cross multiply
1,889,392,312.92x = 2,834,078,377.58 × 490,375,563.19 - Step 4: Simplify right side
1,889,392,312.92x = 1,389,762,780,530,393,856 - Step 5: Solve for x
x = 1,389,762,780,530,393,856/1,889,392,312.92 - Step 6: Final answer
x = 735,560,725.55
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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.