Finding the Fourth Proportional to 1,138,513,326.44, 1,571,149,734.50 and 616,992,558.44
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Solution
The fourth proportional to 1,138,513,326.44, 1,571,149,734.50 and 616,992,558.44 is: 851,450,459.01
Step by Step Solution
- Step 1: Write the proportion equation
1,138,513,326.44 : 1,571,149,734.50 = 616,992,558.44 : x - Step 2: Convert to fraction form
1,138,513,326.44/1,571,149,734.50 = 616,992,558.44/x - Step 3: Cross multiply
1,138,513,326.44x = 1,571,149,734.50 × 616,992,558.44 - Step 4: Simplify right side
1,138,513,326.44x = 969,387,694,381,481,856 - Step 5: Solve for x
x = 969,387,694,381,481,856/1,138,513,326.44 - Step 6: Final answer
x = 851,450,459.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.