Finding the Fourth Proportional to 13,119,713.26, 18,111,759.04 and 8,159,753.31
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Solution
The fourth proportional to 13,119,713.26, 18,111,759.04 and 8,159,753.31 is: 11,264,536.26
Step by Step Solution
- Step 1: Write the proportion equation
13,119,713.26 : 18,111,759.04 = 8,159,753.31 : x - Step 2: Convert to fraction form
13,119,713.26/18,111,759.04 = 8,159,753.31/x - Step 3: Cross multiply
13,119,713.26x = 18,111,759.04 × 8,159,753.31 - Step 4: Simplify right side
13,119,713.26x = 147,787,485,721,366.53 - Step 5: Solve for x
x = 147,787,485,721,366.53/13,119,713.26 - Step 6: Final answer
x = 11,264,536.26
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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.