Finding the Fourth Proportional to 106,872,189.21, 147,483,906.98 and 57,979,617.21
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Solution
The fourth proportional to 106,872,189.21, 147,483,906.98 and 57,979,617.21 is: 80,012,026.84
Step by Step Solution
- Step 1: Write the proportion equation
106,872,189.21 : 147,483,906.98 = 57,979,617.21 : x - Step 2: Convert to fraction form
106,872,189.21/147,483,906.98 = 57,979,617.21/x - Step 3: Cross multiply
106,872,189.21x = 147,483,906.98 × 57,979,617.21 - Step 4: Simplify right side
106,872,189.21x = 8,551,060,471,045,749 - Step 5: Solve for x
x = 8,551,060,471,045,749/106,872,189.21 - Step 6: Final answer
x = 80,012,026.84
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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.