Finding the Fourth Proportional to 121,589,347.99, 167,667,884.99 and 104,006,455.40
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Solution
The fourth proportional to 121,589,347.99, 167,667,884.99 and 104,006,455.40 is: 143,421,629.37
Step by Step Solution
- Step 1: Write the proportion equation
121,589,347.99 : 167,667,884.99 = 104,006,455.40 : x - Step 2: Convert to fraction form
121,589,347.99/167,667,884.99 = 104,006,455.40/x - Step 3: Cross multiply
121,589,347.99x = 167,667,884.99 × 104,006,455.40 - Step 4: Simplify right side
121,589,347.99x = 17,438,542,402,277,514 - Step 5: Solve for x
x = 17,438,542,402,277,514/121,589,347.99 - Step 6: Final answer
x = 143,421,629.37
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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.