Finding the Fourth Proportional to 92,411,543.25, 138,685,135.50 and 74,432,810.79
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Solution
The fourth proportional to 92,411,543.25, 138,685,135.50 and 74,432,810.79 is: 111,703,842.26
Step by Step Solution
- Step 1: Write the proportion equation
92,411,543.25 : 138,685,135.50 = 74,432,810.79 : x - Step 2: Convert to fraction form
92,411,543.25/138,685,135.50 = 74,432,810.79/x - Step 3: Cross multiply
92,411,543.25x = 138,685,135.50 × 74,432,810.79 - Step 4: Simplify right side
92,411,543.25x = 10,322,724,450,057,012 - Step 5: Solve for x
x = 10,322,724,450,057,012/92,411,543.25 - Step 6: Final answer
x = 111,703,842.26
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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.