Finding the Fourth Proportional to 13,119,756.76, 18,104,131.56 and 8,473,747.42
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Solution
The fourth proportional to 13,119,756.76, 18,104,131.56 and 8,473,747.42 is: 11,693,039.81
Step by Step Solution
- Step 1: Write the proportion equation
13,119,756.76 : 18,104,131.56 = 8,473,747.42 : x - Step 2: Convert to fraction form
13,119,756.76/18,104,131.56 = 8,473,747.42/x - Step 3: Cross multiply
13,119,756.76x = 18,104,131.56 × 8,473,747.42 - Step 4: Simplify right side
13,119,756.76x = 153,409,838,097,890.56 - Step 5: Solve for x
x = 153,409,838,097,890.56/13,119,756.76 - Step 6: Final answer
x = 11,693,039.81
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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.