Finding the Fourth Proportional to 31,322,312.68, 46,977,869.58 and 19,928,917.48
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Solution
The fourth proportional to 31,322,312.68, 46,977,869.58 and 19,928,917.48 is: 29,889,813.56
Step by Step Solution
- Step 1: Write the proportion equation
31,322,312.68 : 46,977,869.58 = 19,928,917.48 : x - Step 2: Convert to fraction form
31,322,312.68/46,977,869.58 = 19,928,917.48/x - Step 3: Cross multiply
31,322,312.68x = 46,977,869.58 × 19,928,917.48 - Step 4: Simplify right side
31,322,312.68x = 936,218,086,246,022.25 - Step 5: Solve for x
x = 936,218,086,246,022.25/31,322,312.68 - Step 6: Final answer
x = 29,889,813.56
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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.