Finding the Fourth Proportional to 768,391,602.84, 1,060,380,187.29 and 415,967,332.05
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Solution
The fourth proportional to 768,391,602.84, 1,060,380,187.29 and 415,967,332.05 is: 574,034,796.63
Step by Step Solution
- Step 1: Write the proportion equation
768,391,602.84 : 1,060,380,187.29 = 415,967,332.05 : x - Step 2: Convert to fraction form
768,391,602.84/1,060,380,187.29 = 415,967,332.05/x - Step 3: Cross multiply
768,391,602.84x = 1,060,380,187.29 × 415,967,332.05 - Step 4: Simplify right side
768,391,602.84x = 441,083,517,465,700,608 - Step 5: Solve for x
x = 441,083,517,465,700,608/768,391,602.84 - Step 6: Final answer
x = 574,034,796.63
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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.