Finding the Fourth Proportional to 872,786,351.34, 1,204,470,699.84 and 476,334,768.96
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Solution
The fourth proportional to 872,786,351.34, 1,204,470,699.84 and 476,334,768.96 is: 657,355,917.23
Step by Step Solution
- Step 1: Write the proportion equation
872,786,351.34 : 1,204,470,699.84 = 476,334,768.96 : x - Step 2: Convert to fraction form
872,786,351.34/1,204,470,699.84 = 476,334,768.96/x - Step 3: Cross multiply
872,786,351.34x = 1,204,470,699.84 × 476,334,768.96 - Step 4: Simplify right side
872,786,351.34x = 573,731,272,527,375,872 - Step 5: Solve for x
x = 573,731,272,527,375,872/872,786,351.34 - Step 6: Final answer
x = 657,355,917.23
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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.