Finding the Fourth Proportional to 99,611,574.19, 149,110,904.70 and 64,993,434.55
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Solution
The fourth proportional to 99,611,574.19, 149,110,904.70 and 64,993,434.55 is: 97,290,198.49
Step by Step Solution
- Step 1: Write the proportion equation
99,611,574.19 : 149,110,904.70 = 64,993,434.55 : x - Step 2: Convert to fraction form
99,611,574.19/149,110,904.70 = 64,993,434.55/x - Step 3: Cross multiply
99,611,574.19x = 149,110,904.70 × 64,993,434.55 - Step 4: Simplify right side
99,611,574.19x = 9,691,229,824,937,960 - Step 5: Solve for x
x = 9,691,229,824,937,960/99,611,574.19 - Step 6: Final answer
x = 97,290,198.49
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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.