Finding the Fourth Proportional to 13,372,725.96, 18,455,243.58 and 7,492,831.56
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Solution
The fourth proportional to 13,372,725.96, 18,455,243.58 and 7,492,831.56 is: 10,340,601.61
Step by Step Solution
- Step 1: Write the proportion equation
13,372,725.96 : 18,455,243.58 = 7,492,831.56 : x - Step 2: Convert to fraction form
13,372,725.96/18,455,243.58 = 7,492,831.56/x - Step 3: Cross multiply
13,372,725.96x = 18,455,243.58 × 7,492,831.56 - Step 4: Simplify right side
13,372,725.96x = 138,282,031,543,711.36 - Step 5: Solve for x
x = 138,282,031,543,711.36/13,372,725.96 - Step 6: Final answer
x = 10,340,601.61
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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.