Finding the Fourth Proportional to 99,187,551.24, 136,869,424.02 and 55,129,318.44
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Solution
The fourth proportional to 99,187,551.24, 136,869,424.02 and 55,129,318.44 is: 76,073,236.68
Step by Step Solution
- Step 1: Write the proportion equation
99,187,551.24 : 136,869,424.02 = 55,129,318.44 : x - Step 2: Convert to fraction form
99,187,551.24/136,869,424.02 = 55,129,318.44/x - Step 3: Cross multiply
99,187,551.24x = 136,869,424.02 × 55,129,318.44 - Step 4: Simplify right side
99,187,551.24x = 7,545,518,061,497,965 - Step 5: Solve for x
x = 7,545,518,061,497,965/99,187,551.24 - Step 6: Final answer
x = 76,073,236.68
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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.