Finding the Fourth Proportional to 99,558,747.81, 137,390,581.22 and 57,751,268.49
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Solution
The fourth proportional to 99,558,747.81, 137,390,581.22 and 57,751,268.49 is: 79,696,465.84
Step by Step Solution
- Step 1: Write the proportion equation
99,558,747.81 : 137,390,581.22 = 57,751,268.49 : x - Step 2: Convert to fraction form
99,558,747.81/137,390,581.22 = 57,751,268.49/x - Step 3: Cross multiply
99,558,747.81x = 137,390,581.22 × 57,751,268.49 - Step 4: Simplify right side
99,558,747.81x = 7,934,480,343,744,616 - Step 5: Solve for x
x = 7,934,480,343,744,616/99,558,747.81 - Step 6: Final answer
x = 79,696,465.84
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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.