Finding the Fourth Proportional to 18,641,429.56, 27,963,731.30 and 5,690,489.17
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Solution
The fourth proportional to 18,641,429.56, 27,963,731.30 and 5,690,489.17 is: 8,536,218.19
Step by Step Solution
- Step 1: Write the proportion equation
18,641,429.56 : 27,963,731.30 = 5,690,489.17 : x - Step 2: Convert to fraction form
18,641,429.56/27,963,731.30 = 5,690,489.17/x - Step 3: Cross multiply
18,641,429.56x = 27,963,731.30 × 5,690,489.17 - Step 4: Simplify right side
18,641,429.56x = 159,127,310,115,440.03 - Step 5: Solve for x
x = 159,127,310,115,440.03/18,641,429.56 - Step 6: Final answer
x = 8,536,218.19
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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.