Finding the Fourth Proportional to 765,748,472.72, 1,148,381,770.79 and 248,058,803.84
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Solution
The fourth proportional to 765,748,472.72, 1,148,381,770.79 and 248,058,803.84 is: 372,010,155.50
Step by Step Solution
- Step 1: Write the proportion equation
765,748,472.72 : 1,148,381,770.79 = 248,058,803.84 : x - Step 2: Convert to fraction form
765,748,472.72/1,148,381,770.79 = 248,058,803.84/x - Step 3: Cross multiply
765,748,472.72x = 1,148,381,770.79 × 248,058,803.84 - Step 4: Simplify right side
765,748,472.72x = 284,866,208,408,706,720 - Step 5: Solve for x
x = 284,866,208,408,706,720/765,748,472.72 - Step 6: Final answer
x = 372,010,155.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.