Finding the Fourth Proportional to 13,263,416.80, 19,905,622.80 and 5,180,264.80
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Solution
The fourth proportional to 13,263,416.80, 19,905,622.80 and 5,180,264.80 is: 7,774,497.23
Step by Step Solution
- Step 1: Write the proportion equation
13,263,416.80 : 19,905,622.80 = 5,180,264.80 : x - Step 2: Convert to fraction form
13,263,416.80/19,905,622.80 = 5,180,264.80/x - Step 3: Cross multiply
13,263,416.80x = 19,905,622.80 × 5,180,264.80 - Step 4: Simplify right side
13,263,416.80x = 103,116,397,112,917.44 - Step 5: Solve for x
x = 103,116,397,112,917.44/13,263,416.80 - Step 6: Final answer
x = 7,774,497.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.