Finding the Fourth Proportional to 13,529,241.48, 18,671,116.20 and 8,025,874.68
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Solution
The fourth proportional to 13,529,241.48, 18,671,116.20 and 8,025,874.68 is: 11,076,159.66
Step by Step Solution
- Step 1: Write the proportion equation
13,529,241.48 : 18,671,116.20 = 8,025,874.68 : x - Step 2: Convert to fraction form
13,529,241.48/18,671,116.20 = 8,025,874.68/x - Step 3: Cross multiply
13,529,241.48x = 18,671,116.20 × 8,025,874.68 - Step 4: Simplify right side
13,529,241.48x = 149,852,038,756,917.81 - Step 5: Solve for x
x = 149,852,038,756,917.81/13,529,241.48 - Step 6: Final answer
x = 11,076,159.66
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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.