Finding the Fourth Proportional to 225,374,840.79, 311,309,029.62 and 186,374,157.27
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Solution
The fourth proportional to 225,374,840.79, 311,309,029.62 and 186,374,157.27 is: 257,437,599.70
Step by Step Solution
- Step 1: Write the proportion equation
225,374,840.79 : 311,309,029.62 = 186,374,157.27 : x - Step 2: Convert to fraction form
225,374,840.79/311,309,029.62 = 186,374,157.27/x - Step 3: Cross multiply
225,374,840.79x = 311,309,029.62 × 186,374,157.27 - Step 4: Simplify right side
225,374,840.79x = 58,019,958,045,968,976 - Step 5: Solve for x
x = 58,019,958,045,968,976/225,374,840.79 - Step 6: Final answer
x = 257,437,599.70
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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.