Finding the Fourth Proportional to 13,921,292.80, 19,211,515.16 and 7,809,852.48
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Solution
The fourth proportional to 13,921,292.80, 19,211,515.16 and 7,809,852.48 is: 10,777,669.97
Step by Step Solution
- Step 1: Write the proportion equation
13,921,292.80 : 19,211,515.16 = 7,809,852.48 : x - Step 2: Convert to fraction form
13,921,292.80/19,211,515.16 = 7,809,852.48/x - Step 3: Cross multiply
13,921,292.80x = 19,211,515.16 × 7,809,852.48 - Step 4: Simplify right side
13,921,292.80x = 150,039,099,316,883.59 - Step 5: Solve for x
x = 150,039,099,316,883.59/13,921,292.80 - Step 6: Final answer
x = 10,777,669.97
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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.