Finding the Fourth Proportional to 50,157,812.16, 69,218,539.20 and 28,136,193.12
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Solution
The fourth proportional to 50,157,812.16, 69,218,539.20 and 28,136,193.12 is: 38,828,371.94
Step by Step Solution
- Step 1: Write the proportion equation
50,157,812.16 : 69,218,539.20 = 28,136,193.12 : x - Step 2: Convert to fraction form
50,157,812.16/69,218,539.20 = 28,136,193.12/x - Step 3: Cross multiply
50,157,812.16x = 69,218,539.20 × 28,136,193.12 - Step 4: Simplify right side
50,157,812.16x = 1,947,546,186,415,490.50 - Step 5: Solve for x
x = 1,947,546,186,415,490.50/50,157,812.16 - Step 6: Final answer
x = 38,828,371.94
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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.