Finding the Fourth Proportional to 187,472,050.25, 258,655,466.63 and 121,287,744.05
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Solution
The fourth proportional to 187,472,050.25, 258,655,466.63 and 121,287,744.05 is: 167,340,880.90
Step by Step Solution
- Step 1: Write the proportion equation
187,472,050.25 : 258,655,466.63 = 121,287,744.05 : x - Step 2: Convert to fraction form
187,472,050.25/258,655,466.63 = 121,287,744.05/x - Step 3: Cross multiply
187,472,050.25x = 258,655,466.63 × 121,287,744.05 - Step 4: Simplify right side
187,472,050.25x = 31,371,738,032,762,696 - Step 5: Solve for x
x = 31,371,738,032,762,696/187,472,050.25 - Step 6: Final answer
x = 167,340,880.90
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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.