Finding the Fourth Proportional to 1,273,100,542.70, 1,909,651,255.70 and 572,774,777.19
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Solution
The fourth proportional to 1,273,100,542.70, 1,909,651,255.70 and 572,774,777.19 is: 859,162,364.49
Step by Step Solution
- Step 1: Write the proportion equation
1,273,100,542.70 : 1,909,651,255.70 = 572,774,777.19 : x - Step 2: Convert to fraction form
1,273,100,542.70/1,909,651,255.70 = 572,774,777.19/x - Step 3: Cross multiply
1,273,100,542.70x = 1,909,651,255.70 × 572,774,777.19 - Step 4: Simplify right side
1,273,100,542.70x = 1,093,800,072,491,307,392 - Step 5: Solve for x
x = 1,093,800,072,491,307,392/1,273,100,542.70 - Step 6: Final answer
x = 859,162,364.49
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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.