Finding the Fourth Proportional to 248,693,353.79, 343,190,766.51 and 137,181,753.09
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Solution
The fourth proportional to 248,693,353.79, 343,190,766.51 and 137,181,753.09 is: 189,307,475.56
Step by Step Solution
- Step 1: Write the proportion equation
248,693,353.79 : 343,190,766.51 = 137,181,753.09 : x - Step 2: Convert to fraction form
248,693,353.79/343,190,766.51 = 137,181,753.09/x - Step 3: Cross multiply
248,693,353.79x = 343,190,766.51 × 137,181,753.09 - Step 4: Simplify right side
248,693,353.79x = 47,079,510,994,142,664 - Step 5: Solve for x
x = 47,079,510,994,142,664/248,693,353.79 - Step 6: Final answer
x = 189,307,475.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.