Finding the Fourth Proportional to 121,626,485.36, 167,844,496.76 and 65,871,908.32
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Solution
The fourth proportional to 121,626,485.36, 167,844,496.76 and 65,871,908.32 is: 90,903,204.76
Step by Step Solution
- Step 1: Write the proportion equation
121,626,485.36 : 167,844,496.76 = 65,871,908.32 : x - Step 2: Convert to fraction form
121,626,485.36/167,844,496.76 = 65,871,908.32/x - Step 3: Cross multiply
121,626,485.36x = 167,844,496.76 × 65,871,908.32 - Step 4: Simplify right side
121,626,485.36x = 11,056,237,302,591,256 - Step 5: Solve for x
x = 11,056,237,302,591,256/121,626,485.36 - Step 6: Final answer
x = 90,903,204.76
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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.