Finding the Fourth Proportional to 99,665,093.10, 149,497,639.65 and 72,791,237.10
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Solution
The fourth proportional to 99,665,093.10, 149,497,639.65 and 72,791,237.10 is: 109,186,855.65
Step by Step Solution
- Step 1: Write the proportion equation
99,665,093.10 : 149,497,639.65 = 72,791,237.10 : x - Step 2: Convert to fraction form
99,665,093.10/149,497,639.65 = 72,791,237.10/x - Step 3: Cross multiply
99,665,093.10x = 149,497,639.65 × 72,791,237.10 - Step 4: Simplify right side
99,665,093.10x = 10,882,118,133,653,510 - Step 5: Solve for x
x = 10,882,118,133,653,510/99,665,093.10 - Step 6: Final answer
x = 109,186,855.65
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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.