Finding the Fourth Proportional to 1,135,375,887.31, 1,566,815,786.07 and 633,579,392.10
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Solution
The fourth proportional to 1,135,375,887.31, 1,566,815,786.07 and 633,579,392.10 is: 874,337,921.36
Step by Step Solution
- Step 1: Write the proportion equation
1,135,375,887.31 : 1,566,815,786.07 = 633,579,392.10 : x - Step 2: Convert to fraction form
1,135,375,887.31/1,566,815,786.07 = 633,579,392.10/x - Step 3: Cross multiply
1,135,375,887.31x = 1,566,815,786.07 × 633,579,392.10 - Step 4: Simplify right side
1,135,375,887.31x = 992,702,193,274,445,440 - Step 5: Solve for x
x = 992,702,193,274,445,440/1,135,375,887.31 - Step 6: Final answer
x = 874,337,921.36
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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.