Finding the Fourth Proportional to 121,324,537.70, 181,986,806.55 and 39,443,257.70
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Solution
The fourth proportional to 121,324,537.70, 181,986,806.55 and 39,443,257.70 is: 59,164,886.55
Step by Step Solution
- Step 1: Write the proportion equation
121,324,537.70 : 181,986,806.55 = 39,443,257.70 : x - Step 2: Convert to fraction form
121,324,537.70/181,986,806.55 = 39,443,257.70/x - Step 3: Cross multiply
121,324,537.70x = 181,986,806.55 × 39,443,257.70 - Step 4: Simplify right side
121,324,537.70x = 7,178,152,508,751,699 - Step 5: Solve for x
x = 7,178,152,508,751,699/121,324,537.70 - Step 6: Final answer
x = 59,164,886.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.