Finding the Fourth Proportional to 99,674,679.80, 149,540,013.30 and 48,558,366.20
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Solution
The fourth proportional to 99,674,679.80, 149,540,013.30 and 48,558,366.20 is: 72,851,186.90
Step by Step Solution
- Step 1: Write the proportion equation
99,674,679.80 : 149,540,013.30 = 48,558,366.20 : x - Step 2: Convert to fraction form
99,674,679.80/149,540,013.30 = 48,558,366.20/x - Step 3: Cross multiply
99,674,679.80x = 149,540,013.30 × 48,558,366.20 - Step 4: Simplify right side
99,674,679.80x = 7,261,418,727,374,271 - Step 5: Solve for x
x = 7,261,418,727,374,271/99,674,679.80 - Step 6: Final answer
x = 72,851,186.90
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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.