Finding the Fourth Proportional to 14,412,169.14, 19,886,831.20 and 8,609,718.76
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Solution
The fourth proportional to 14,412,169.14, 19,886,831.20 and 8,609,718.76 is: 11,880,239.68
Step by Step Solution
- Step 1: Write the proportion equation
14,412,169.14 : 19,886,831.20 = 8,609,718.76 : x - Step 2: Convert to fraction form
14,412,169.14/19,886,831.20 = 8,609,718.76/x - Step 3: Cross multiply
14,412,169.14x = 19,886,831.20 × 8,609,718.76 - Step 4: Simplify right side
14,412,169.14x = 171,220,023,659,593.31 - Step 5: Solve for x
x = 171,220,023,659,593.31/14,412,169.14 - Step 6: Final answer
x = 11,880,239.68
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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.