Finding the Fourth Proportional to 377,274,593.08, 520,633,605.63 and 212,261,768.92
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Solution
The fourth proportional to 377,274,593.08, 520,633,605.63 and 212,261,768.92 is: 292,918,240.76
Step by Step Solution
- Step 1: Write the proportion equation
377,274,593.08 : 520,633,605.63 = 212,261,768.92 : x - Step 2: Convert to fraction form
377,274,593.08/520,633,605.63 = 212,261,768.92/x - Step 3: Cross multiply
377,274,593.08x = 520,633,605.63 × 212,261,768.92 - Step 4: Simplify right side
377,274,593.08x = 110,510,610,090,221,456 - Step 5: Solve for x
x = 110,510,610,090,221,456/377,274,593.08 - Step 6: Final answer
x = 292,918,240.76
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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.