Finding the Fourth Proportional to 10,201,916.79, 14,079,285.68 and 5,618,238.03
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Solution
The fourth proportional to 10,201,916.79, 14,079,285.68 and 5,618,238.03 is: 7,753,521.21
Step by Step Solution
- Step 1: Write the proportion equation
10,201,916.79 : 14,079,285.68 = 5,618,238.03 : x - Step 2: Convert to fraction form
10,201,916.79/14,079,285.68 = 5,618,238.03/x - Step 3: Cross multiply
10,201,916.79x = 14,079,285.68 × 5,618,238.03 - Step 4: Simplify right side
10,201,916.79x = 79,100,778,214,519.23 - Step 5: Solve for x
x = 79,100,778,214,519.23/10,201,916.79 - Step 6: Final answer
x = 7,753,521.21
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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.