Finding the Fourth Proportional to 314,804,840.80, 472,207,261.20 and 161,749,832.80
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Solution
The fourth proportional to 314,804,840.80, 472,207,261.20 and 161,749,832.80 is: 242,624,749.20
Step by Step Solution
- Step 1: Write the proportion equation
314,804,840.80 : 472,207,261.20 = 161,749,832.80 : x - Step 2: Convert to fraction form
314,804,840.80/472,207,261.20 = 161,749,832.80/x - Step 3: Cross multiply
314,804,840.80x = 472,207,261.20 × 161,749,832.80 - Step 4: Simplify right side
314,804,840.80x = 76,379,445,546,045,936 - Step 5: Solve for x
x = 76,379,445,546,045,936/314,804,840.80 - Step 6: Final answer
x = 242,624,749.20
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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.