Finding the Fourth Proportional to 121,295,551.68, 167,468,659.04 and 71,751,841.44
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Solution
The fourth proportional to 121,295,551.68, 167,468,659.04 and 71,751,841.44 is: 99,065,336.72
Step by Step Solution
- Step 1: Write the proportion equation
121,295,551.68 : 167,468,659.04 = 71,751,841.44 : x - Step 2: Convert to fraction form
121,295,551.68/167,468,659.04 = 71,751,841.44/x - Step 3: Cross multiply
121,295,551.68x = 167,468,659.04 × 71,751,841.44 - Step 4: Simplify right side
121,295,551.68x = 12,016,184,669,607,502 - Step 5: Solve for x
x = 12,016,184,669,607,502/121,295,551.68 - Step 6: Final answer
x = 99,065,336.72
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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.