Finding the Fourth Proportional to 13,871,516.13, 19,142,664.53 and 7,759,944.63
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Solution
The fourth proportional to 13,871,516.13, 19,142,664.53 and 7,759,944.63 is: 10,708,708.07
Step by Step Solution
- Step 1: Write the proportion equation
13,871,516.13 : 19,142,664.53 = 7,759,944.63 : x - Step 2: Convert to fraction form
13,871,516.13/19,142,664.53 = 7,759,944.63/x - Step 3: Cross multiply
13,871,516.13x = 19,142,664.53 × 7,759,944.63 - Step 4: Simplify right side
13,871,516.13x = 148,546,016,784,665.25 - Step 5: Solve for x
x = 148,546,016,784,665.25/13,871,516.13 - Step 6: Final answer
x = 10,708,708.07
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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.