Finding the Fourth Proportional to 15,729,162.68, 21,706,917.94 and 8,759,840.19
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Solution
The fourth proportional to 15,729,162.68, 21,706,917.94 and 8,759,840.19 is: 12,088,954.51
Step by Step Solution
- Step 1: Write the proportion equation
15,729,162.68 : 21,706,917.94 = 8,759,840.19 : x - Step 2: Convert to fraction form
15,729,162.68/21,706,917.94 = 8,759,840.19/x - Step 3: Cross multiply
15,729,162.68x = 21,706,917.94 × 8,759,840.19 - Step 4: Simplify right side
15,729,162.68x = 190,149,132,101,392.84 - Step 5: Solve for x
x = 190,149,132,101,392.84/15,729,162.68 - Step 6: Final answer
x = 12,088,954.51
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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.