Finding the Fourth Proportional to 168,886,324.71, 232,942,955.07 and 154,992,556.05
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Solution
The fourth proportional to 168,886,324.71, 232,942,955.07 and 154,992,556.05 is: 213,779,440.59
Step by Step Solution
- Step 1: Write the proportion equation
168,886,324.71 : 232,942,955.07 = 154,992,556.05 : x - Step 2: Convert to fraction form
168,886,324.71/232,942,955.07 = 154,992,556.05/x - Step 3: Cross multiply
168,886,324.71x = 232,942,955.07 × 154,992,556.05 - Step 4: Simplify right side
168,886,324.71x = 36,104,424,020,139,608 - Step 5: Solve for x
x = 36,104,424,020,139,608/168,886,324.71 - Step 6: Final answer
x = 213,779,440.59
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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.