Finding the Fourth Proportional to 13,294,139.99, 18,345,895.42 and 7,182,568.49
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Solution
The fourth proportional to 13,294,139.99, 18,345,895.42 and 7,182,568.49 is: 9,911,934.92
Step by Step Solution
- Step 1: Write the proportion equation
13,294,139.99 : 18,345,895.42 = 7,182,568.49 : x - Step 2: Convert to fraction form
13,294,139.99/18,345,895.42 = 7,182,568.49/x - Step 3: Cross multiply
13,294,139.99x = 18,345,895.42 × 7,182,568.49 - Step 4: Simplify right side
13,294,139.99x = 131,770,650,298,612.02 - Step 5: Solve for x
x = 131,770,650,298,612.02/13,294,139.99 - Step 6: Final answer
x = 9,911,934.92
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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.